Question 1

The heat of fusion for lead at  327.0∘C327.0{ }^{\circ} \mathrm{C}327.0∘C  is  22.9 kJ/kg22.9 \mathrm{~kJ} / \mathrm{kg}22.9 kJ/kg  and the specific heat of lead is  0.130 kJ/kg∘C0.130 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}0.130 kJ/kg∘C . What is the energy needed to melt 100 grams of lead starting at  0∘C0{ }^{\circ} \mathrm{C}0∘C  ?

Accepted Answer

A)    3.56 kJ3.56 \mathrm{~kJ}3.56 kJ 
B)    7.76 kJ7.76 \mathrm{~kJ}7.76 kJ 
C)    4.23 kJ4.23 \mathrm{~kJ}4.23 kJ 
D)    7.02 kJ7.02 \mathrm{~kJ}7.02 kJ 
E)    6.54 kJ6.54 \mathrm{~kJ}6.54 kJ

Question 2

A metal rod is placed between two temperature sources so that heat can flow between them. One temperature is  90.0∘C90.0^{\circ} \mathrm{C}90.0∘C  and the other temperature is  25.0∘C25.0^{\circ} \mathrm{C}25.0∘C . The length of the rod is  30.0 cm30.0 \mathrm{~cm}30.0 cm  and the cross-sectional area is  10.0 cm210.0 \mathrm{~cm}^{2}10.0 cm2 . If 15.0 watts of heat flows between the hot temperature and the cold temperature, then what is the thermal conductivity for the metal?

Accepted Answer

A)    69.2 W/(m⋅∘
C)  69.2 \mathrm{~W} /\left(\mathrm{m} \cdot{ }^{\circ} \mathrm{C}\right) 69.2 W/(m⋅∘
C)   
B)    46.3 W/(m⋅∘
C)  46.3 \mathrm{~W} /\left(\mathrm{m} \cdot{ }^{\circ} \mathrm{C}\right) 46.3 W/(m⋅∘
C)   
C)    50.4 W/(m⋅∘
C)  50.4 \mathrm{~W} /\left(\mathrm{m} \cdot{ }^{\circ} \mathrm{C}\right) 50.4 W/(m⋅∘
C)   
D)    58.2 W/(m⋅∘
C)  58.2 \mathrm{~W} /\left(\mathrm{m} \cdot{ }^{\circ} \mathrm{C}\right) 58.2 W/(m⋅∘
C)   
E)    44.2 W/(m⋅∘
C)  44.2 \mathrm{~W} /\left(\mathrm{m} \cdot{ }^{\circ} \mathrm{C}\right) 44.2 W/(m⋅∘
C)

Question 3

A rigid cubic box,  15 cm15 \mathrm{~cm}15 cm  on a side, is filled with nitrogen gas  (N2) \left(\mathrm{N}_{2}\right) (N2​)   at standard temperature and pressure  (0(0(0   ∘C{ }^{\circ} \mathrm{C}∘C  and  1 atm1 \mathrm{~atm}1 atm  ) . The temperature of the box is later raised to  25∘C25^{\circ} \mathrm{C}25∘C . What is the heat input required to perform this act?

Accepted Answer

A)    157 J157 \mathrm{~J}157 J 
B)    31.4 J31.4 \mathrm{~J}31.4 J 
C)    52.3 J52.3 \mathrm{~J}52.3 J 
D)    78.2 J78.2 \mathrm{~J}78.2 J 
E)    94.1 J94.1 \mathrm{~J}94.1 J F)   47.1 J47.1 \mathrm{~J}47.1 J

Question 4

The specific heat of ice is  2.10 kJ/kg∘C2.10 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}2.10 kJ/kg∘C , the heat of fusion for ice at  0∘C0{ }^{\circ} \mathrm{C}0∘C  is  333.7 kJ/kg333.7 \mathrm{~kJ} / \mathrm{kg}333.7 kJ/kg , the specific heat of water  4.186 kJ/kg∘C4.186 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}4.186 kJ/kg∘C , and the heat of vaporization of water at  100∘C100^{\circ} \mathrm{C}100∘C  is  2,256 kJ/kg2,256 \mathrm{~kJ} / \mathrm{kg}2,256 kJ/kg . What is the final equilibrium temperature when 10.0 grams of ice at  −15.0∘C-15.0^{\circ} \mathrm{C}−15.0∘C  is mixed with 3.00 grams of steam at  100∘C100^{\circ} \mathrm{C}100∘C  ?

Accepted Answer

A)    60.2∘C60.2^{\circ} \mathrm{C}60.2∘C 
B)    76.4∘C76.4^{\circ} \mathrm{C}76.4∘C 
C)    70.2∘C70.2^{\circ} \mathrm{C}70.2∘C 
D)    65.0∘C65.0^{\circ} \mathrm{C}65.0∘C 
E)    80.3∘C80.3^{\circ} \mathrm{C}80.3∘C

Question 5

The intensity of solar radiation reaching the Earth is  1,340 W/m21,340 \mathrm{~W} / \mathrm{m}^{2}1,340 W/m2  when the temperature of the Sun is  5,800 K5,800 \mathrm{~K}5,800 K . If the temperature of the Sun increased by  10.00%10.00 \%10.00% , then what would be the intensity of solar radiation reaching the earth?

Accepted Answer

A)    1,828 W/m21,828 \mathrm{~W} / \mathrm{m}^{2}1,828 W/m2 
B)    1,962 W/m21,962 \mathrm{~W} / \mathrm{m}^{2}1,962 W/m2 
C)    2,004 W/m22,004 \mathrm{~W} / \mathrm{m}^{2}2,004 W/m2 
D)    1,492 W/m21,492 \mathrm{~W} / \mathrm{m}^{2}1,492 W/m2 
E)    1,632 W/m21,632 \mathrm{~W} / \mathrm{m}^{2}1,632 W/m2 B

Question 6

What is the change in internal energy of 2.00 moles of a monatomic ideal gas as it is heated from  0 K0 \mathrm{~K}0 K  to 100  K\mathrm{K}K  ?

Accepted Answer

A)    2,490 J2,490 \mathrm{~J}2,490 J 
B)    1,950 J1,950 \mathrm{~J}1,950 J 
C)    2,750 J2,750 \mathrm{~J}2,750 J 
D)    3,250 J3,250 \mathrm{~J}3,250 J 
E)    3,670 J3,670 \mathrm{~J}3,670 J

Question 7

The specific heat of ice is  2.10 kJ/kg∘C2.10 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}2.10 kJ/kg∘C , the heat of fusion for ice at  0∘C0{ }^{\circ} \mathrm{C}0∘C  is  333.7 kJ/kg333.7 \mathrm{~kJ} / \mathrm{kg}333.7 kJ/kg , the specific heat of water  4.186 kJ/kg∘C4.186 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}4.186 kJ/kg∘C , the heat of vaporization of water at  100∘C100^{\circ} \mathrm{C}100∘C  is  2,256 kJ/kg2,256 \mathrm{~kJ} / \mathrm{kg}2,256 kJ/kg , and the specific heat of steam is  2.020 kJ/kg∘C2.020 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}2.020 kJ/kg∘C . What is the final equilibrium temperature when 40.0 grams of ice at  0∘C0{ }^{\circ} \mathrm{C}0∘C  is mixed with 8.00 grams of steam at  120∘C120^{\circ} \mathrm{C}120∘C  ?

Accepted Answer

A)    38.76∘C38.76^{\circ} \mathrm{C}38.76∘C 
B)    50.22∘C50.22^{\circ} \mathrm{C}50.22∘C 
C)    41.67∘C41.67^{\circ} \mathrm{C}41.67∘C 
D)    25.67∘C25.67^{\circ} \mathrm{C}25.67∘C 
E)    32.55∘C32.55^{\circ} \mathrm{C}32.55∘C

Question 8

A person lifts  10.00 N10.00 \mathrm{~N}10.00 N  weights a vertical distance of  50.00 cm50.00 \mathrm{~cm}50.00 cm . How many times would they have to lift the weight to use 10.00 Calories of energy?

Accepted Answer

A)   7,503
B)   4,125
C)   8,370
D)   9,670
E)   5,170

Question 9

A rigid cylinder (  15 cm15 \mathrm{~cm}15 cm  radius,  15 cm15 \mathrm{~cm}15 cm  height)  contains nitrogen gas  (N2) \left(\mathrm{N}_{2}\right) (N2​)   at standard temperature and pressure  (0∘C\left(0^{\circ} \mathrm{C}\right.(0∘C  and  1 atm) \left.1 \mathrm{~atm}\right) 1 atm)  . What heat input is required to increase the average translational kinetic energy of the nitrogen molecules by  15%15 \%15%  ?

Accepted Answer

A)    77 J77 \mathrm{~J}77 J 
B)    260 J260 \mathrm{~J}260 J 
C)    130 J130 \mathrm{~J}130 J 
D)    86 J86 \mathrm{~J}86 J 
E)    51 J51 \mathrm{~J}51 J F)   403 J403 \mathrm{~J}403 J F

Question 10

The heat of fusion for silver at  960.8∘C960.8{ }^{\circ} \mathrm{C}960.8∘C  is  88.3 kJ/kg88.3 \mathrm{~kJ} / \mathrm{kg}88.3 kJ/kg  and the specific heat of silver is  0.235 kJ/kg∘C0.235 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}0.235 kJ/kg∘C . What is the energy needed to melt 100 grams of silver starting at  0∘C0{ }^{\circ} \mathrm{C}0∘C  ?

Accepted Answer

A)    31.4 kJ31.4 \mathrm{~kJ}31.4 kJ 
B)    13.7 kJ13.7 \mathrm{~kJ}13.7 kJ 
C)    25.4 kJ25.4 \mathrm{~kJ}25.4 kJ 
D)    40.5 kJ40.5 \mathrm{~kJ}40.5 kJ 
E)    19.5 kJ19.5 \mathrm{~kJ}19.5 kJ

Question 11

A brass rod with a length of  30.0 cm30.0 \mathrm{~cm}30.0 cm  is placed side by side with an aluminum rod with a length of  30.0 cm30.0 \mathrm{~cm}30.0 cm , and this system is placed between a hot temperature of  100∘C100^{\circ} \mathrm{C}100∘C  and a cold temperature of  10.0∘C10.0^{\circ} \mathrm{C}10.0∘C . The thermal conductivities of the brass and the aluminum are  100 W/m∘C100 \mathrm{~W} / \mathrm{m}^{\circ} \mathrm{C}100 W/m∘C  and  230 W/m∘C230 \mathrm{~W} / \mathrm{m}{ }^{\circ} \mathrm{C}230 W/m∘C , respectively. The brass rod has a cross-sectional area of  20.0 cm220.0 \mathrm{~cm}^{2}20.0 cm2 , and the aluminum rod has a cross-sectional area of 30.0  cm2\mathrm{cm}^{2}cm2 . What is the rate of heat flow from the hot temperature to the cold temperature?

Accepted Answer

A)    267 W267 \mathrm{~W}267 W 
B)    542 W542 \mathrm{~W}542 W 
C)    54.2 W54.2 \mathrm{~W}54.2 W 
D)    26.7 W26.7 \mathrm{~W}26.7 W

Question 12

A jogger runs a kilometer in 8.30 minutes in still, dry air at a temperature of  25.0∘C25.0^{\circ} \mathrm{C}25.0∘C . Her skin has a temperature of  35.0∘C35.0{ }^{\circ} \mathrm{C}35.0∘C  and an exposed area of  1.00 m21.00 \mathrm{~m}^{2}1.00 m2 . If the convective coefficient is  22.0 W/m2∘C22.0 \mathrm{~W} / \mathrm{m}^{2}{ }^{\circ} \mathrm{C}22.0 W/m2∘C , then what is the rate of heat flow due to convection from her skin to the air?

Accepted Answer

A)    186 W186 \mathrm{~W}186 W 
B)    220 W220 \mathrm{~W}220 W 
C)    285 W285 \mathrm{~W}285 W 
D)    102 W102 \mathrm{~W}102 W 
E)    95.7 W95.7 \mathrm{~W}95.7 W B

Question 13

A person of mass  90.0 kg90.0 \mathrm{~kg}90.0 kg  walks up a flight of stairs that are 12.0 meters high. What is the required energy of the exercise in Calories?

Accepted Answer

A)   1.85
B)   8.55
C)   4.66
D)   2.53
E)   7.32

Question 14

200 joules of heat flows into a  35.0 g35.0 \mathrm{~g}35.0 g  sample. If the temperature increases by  10.0∘C10.0^{\circ} \mathrm{C}10.0∘C , then what is the specific heat capacity of the sample, in  J/kg∘C\mathrm{J} / \mathrm{kg}^{\circ} \mathrm{C}J/kg∘C  ?

Accepted Answer

A)   375
B)   571
C)   254
D)   175
E)   422

Question 15

The specific heat of ice is  2.100 kJ/kg∘C2.100 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}2.100 kJ/kg∘C , the heat of fusion for ice at  0∘C0{ }^{\circ} \mathrm{C}0∘C  is  333.7 kJ/kg333.7 \mathrm{~kJ} / \mathrm{kg}333.7 kJ/kg , the specific heat of water  4.186 kJ/kg∘C4.186 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}4.186 kJ/kg∘C , and the heat of vaporization of water at  100.0∘C100.0^{\circ} \mathrm{C}100.0∘C  is 2,256  kJ/kg\mathrm{kJ} / \mathrm{kg}kJ/kg . What is the final equilibrium temperature when 10.00 grams of ice at  −15∘C-15^{\circ} \mathrm{C}−15∘C  is mixed with 3.000 grams of steam at  100∘C100{ }^{\circ} \mathrm{C}100∘C  ?

Accepted Answer

A)    78.45∘C78.45^{\circ} \mathrm{C}78.45∘C 
B)    80.34∘C80.34^{\circ} \mathrm{C}80.34∘C 
C)    85.32∘C85.32^{\circ} \mathrm{C}85.32∘C 
D)    82.56∘C82.56^{\circ} \mathrm{C}82.56∘C 
E)    87.21∘C87.21^{\circ} \mathrm{C}87.21∘C

Question 16

The heat of vaporization of water at  100.0∘C100.0^{\circ} \mathrm{C}100.0∘C  is  2,256 kJ/kg2,256 \mathrm{~kJ} / \mathrm{kg}2,256 kJ/kg . What is the heat of vaporization of water in  cal/g\mathrm{cal} / \mathrm{g}cal/g  ?

Accepted Answer

A)   497.2
B)   418.6
C)   365.3
D)   684.1
E)   538.9

Question 17

The specific heat of ice is  2.100 kJ/kg∘C2.100 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}2.100 kJ/kg∘C , the heat of fusion for ice at  0∘C0{ }^{\circ} \mathrm{C}0∘C  is  333.7 kJ/kg333.7 \mathrm{~kJ} / \mathrm{kg}333.7 kJ/kg , the specific heat of water  4.186 kJ/kg∘C4.186 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}4.186 kJ/kg∘C , and the heat of vaporization of water at  100∘C100{ }^{\circ} \mathrm{C}100∘C  is  2,256 kJ/k2,256 \mathrm{~kJ} / \mathrm{k}2,256 kJ/k . What is the final equilibrium temperature when 10.00 grams of ice at  −15.00∘C-15.00^{\circ} \mathrm{C}−15.00∘C  is mixed with 2.00 grams of steam at  100.0∘C100.0^{\circ} \mathrm{C}100.0∘C  ?

Accepted Answer

A)    40.12∘C40.12^{\circ} \mathrm{C}40.12∘C 
B)    45.711∘C45.711^{\circ} \mathrm{C}45.711∘C 
C)    53.53∘C53.53^{\circ} \mathrm{C}53.53∘C 
D)    33.79∘C33.79^{\circ} \mathrm{C}33.79∘C 
E)    27.54∘C27.54^{\circ} \mathrm{C}27.54∘C

Question 18

A sample of helium has a volume of 2.00 liters, a temperature of  20.0∘C20.0^{\circ} \mathrm{C}20.0∘C , and a pressure of 2.50 atmospheres. What is the energy needed to heat the sample of helium gas from  20.0∘C20.0^{\circ} \mathrm{C}20.0∘C  to  95.0∘C95.0^{\circ} \mathrm{C}95.0∘C  at constant volume?

Accepted Answer

A)    476 J476 \mathrm{~J}476 J 
B)    88.0 J88.0 \mathrm{~J}88.0 J 
C)    137 J137 \mathrm{~J}137 J 
D)    207 J207 \mathrm{~J}207 J 
E)    194 J194 \mathrm{~J}194 J

Question 19

The specific heat of ice is  2.10 kJ/kg∘C2.10 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}2.10 kJ/kg∘C , the heat of fusion for ice at  0∘C0^{\circ} \mathrm{C}0∘C  is  333.7 kJ/kg333.7 \mathrm{~kJ} / \mathrm{kg}333.7 kJ/kg , the specific heat of water  4.186 kJ/kg∘C4.186 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}4.186 kJ/kg∘C , and the heat of vaporization of water at  100∘C100^{\circ} \mathrm{C}100∘C  is  2,256 kJ/kg2,256 \mathrm{~kJ} / \mathrm{kg}2,256 kJ/kg . What is the final equilibrium temperature when 20.0 grams of ice at  −15.0∘C-15.0^{\circ} \mathrm{C}−15.0∘C  is mixed with 5.00 grams of steam at  100∘C100^{\circ} \mathrm{C}100∘C  ?

Accepted Answer

A)    52.7∘C52.7^{\circ} \mathrm{C}52.7∘C 
B)    44.1∘C44.1^{\circ} \mathrm{C}44.1∘C 
C)    48.9∘C48.9^{\circ} \mathrm{C}48.9∘C 
D)    58.0∘C58.0^{\circ} \mathrm{C}58.0∘C 
E)    65.2∘C65.2^{\circ} \mathrm{C}65.2∘C

Question 20

The specific heat of steam is  2,020 J/kgK2,020 \mathrm{~J} / \mathrm{kg} \mathrm{K}2,020 J/kgK  in SI units. What is the value of the specific heat of steam in cal/g  ∘C{ }^{\circ} \mathrm{C}∘C  ?

Accepted Answer

A)   0.6812
B)   0.8765
C)   1.000
D)   0.2563
E)   0.4826

Exam 14: Heat

The heat of fusion for lead at $327.0{ }^{\circ} \mathrm{C}$ is $22.9 \mathrm{~kJ} / \mathrm{kg}$ and the specific heat of lead is $0.130 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}$ . What is the energy needed to melt 100 grams of lead starting at $0{ }^{\circ} \mathrm{C}$ ?

Correct Answer
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The intensity of solar radiation reaching the Earth is $1,340 \mathrm{~W} / \mathrm{m}^{2}$ when the temperature of the Sun is $5,800 \mathrm{~K}$ . If the temperature of the Sun increased by $10.00 \%$ , then what would be the intensity of solar radiation reaching the earth?

Correct Answer
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B

What is the change in internal energy of 2.00 moles of a monatomic ideal gas as it is heated from $0 \mathrm{~K}$ to 100 $\mathrm{K}$ ?

Correct Answer
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A person lifts $10.00 \mathrm{~N}$ weights a vertical distance of $50.00 \mathrm{~cm}$ . How many times would they have to lift the weight to use 10.00 Calories of energy?

Correct Answer
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F

The heat of fusion for silver at $960.8{ }^{\circ} \mathrm{C}$ is $88.3 \mathrm{~kJ} / \mathrm{kg}$ and the specific heat of silver is $0.235 \mathrm{~kJ} / \mathrm{kg}{ }^{\circ} \mathrm{C}$ . What is the energy needed to melt 100 grams of silver starting at $0{ }^{\circ} \mathrm{C}$ ?

Correct Answer
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Correct Answer
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Correct Answer
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B

A person of mass $90.0 \mathrm{~kg}$ walks up a flight of stairs that are 12.0 meters high. What is the required energy of the exercise in Calories?

Correct Answer
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200 joules of heat flows into a $35.0 \mathrm{~g}$ sample. If the temperature increases by $10.0^{\circ} \mathrm{C}$ , then what is the specific heat capacity of the sample, in $\mathrm{J} / \mathrm{kg}^{\circ} \mathrm{C}$ ?

Correct Answer
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Correct Answer
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The heat of vaporization of water at $100.0^{\circ} \mathrm{C}$ is $2,256 \mathrm{~kJ} / \mathrm{kg}$ . What is the heat of vaporization of water in $\mathrm{cal} / \mathrm{g}$ ?

Correct Answer
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Correct Answer
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A sample of helium has a volume of 2.00 liters, a temperature of $20.0^{\circ} \mathrm{C}$ , and a pressure of 2.50 atmospheres. What is the energy needed to heat the sample of helium gas from $20.0^{\circ} \mathrm{C}$ to $95.0^{\circ} \mathrm{C}$ at constant volume?

Correct Answer
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Correct Answer
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The specific heat of steam is $2,020 \mathrm{~J} / \mathrm{kg} \mathrm{K}$ in SI units. What is the value of the specific heat of steam in cal/g ${ }^{\circ} \mathrm{C}$ ?

Correct Answer
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Exam 14: Heat

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Correct AnswerverifiedB

What is the change in internal energy of 2.00 moles of a monatomic ideal gas as it is heated from 0 K0 \mathrm{~K}0 K to 100 K\mathrm{K}K ?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A person lifts 10.00 N10.00 \mathrm{~N}10.00 N weights a vertical distance of 50.00 cm50.00 \mathrm{~cm}50.00 cm . How many times would they have to lift the weight to use 10.00 Calories of energy?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedF

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Correct AnswerverifiedB

A person of mass 90.0 kg90.0 \mathrm{~kg}90.0 kg walks up a flight of stairs that are 12.0 meters high. What is the required energy of the exercise in Calories?

Correct AnswerverifiedShow Answer

200 joules of heat flows into a 35.0 g35.0 \mathrm{~g}35.0 g sample. If the temperature increases by 10.0∘C10.0^{\circ} \mathrm{C}10.0∘C , then what is the specific heat capacity of the sample, in J/kg∘C\mathrm{J} / \mathrm{kg}^{\circ} \mathrm{C}J/kg∘C ?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

The heat of vaporization of water at 100.0∘C100.0^{\circ} \mathrm{C}100.0∘C is 2,256 kJ/kg2,256 \mathrm{~kJ} / \mathrm{kg}2,256 kJ/kg . What is the heat of vaporization of water in cal/g\mathrm{cal} / \mathrm{g}cal/g ?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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Correct AnswerverifiedShow Answer

The specific heat of steam is 2,020 J/kgK2,020 \mathrm{~J} / \mathrm{kg} \mathrm{K}2,020 J/kgK in SI units. What is the value of the specific heat of steam in cal/g ∘C{ }^{\circ} \mathrm{C}∘C ?

Correct AnswerverifiedShow Answer

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B

What is the change in internal energy of 2.00 moles of a monatomic ideal gas as it is heated from $0 \mathrm{~K}$ to 100 $\mathrm{K}$ ?

Correct Answer
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Correct Answer
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A person lifts $10.00 \mathrm{~N}$ weights a vertical distance of $50.00 \mathrm{~cm}$ . How many times would they have to lift the weight to use 10.00 Calories of energy?

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F

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B

A person of mass $90.0 \mathrm{~kg}$ walks up a flight of stairs that are 12.0 meters high. What is the required energy of the exercise in Calories?

Correct Answer
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200 joules of heat flows into a $35.0 \mathrm{~g}$ sample. If the temperature increases by $10.0^{\circ} \mathrm{C}$ , then what is the specific heat capacity of the sample, in $\mathrm{J} / \mathrm{kg}^{\circ} \mathrm{C}$ ?

Correct Answer
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Correct Answer
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The heat of vaporization of water at $100.0^{\circ} \mathrm{C}$ is $2,256 \mathrm{~kJ} / \mathrm{kg}$ . What is the heat of vaporization of water in $\mathrm{cal} / \mathrm{g}$ ?

Correct Answer
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The specific heat of steam is $2,020 \mathrm{~J} / \mathrm{kg} \mathrm{K}$ in SI units. What is the value of the specific heat of steam in cal/g ${ }^{\circ} \mathrm{C}$ ?

Correct Answer
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