specific heat capacity of ice = 2,000 J/kg-C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-C The 1 kg block of ice melts into water. The amount of heat absorbed by the ice as it melts is
a. 2,000 J.
b. 4,000 J.
c. 20,000 J.
d. 40,000 J.
e. 334,000 J.
[Ques. 2] specific heat capacity of ice = 2,000 J/kg-C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-C A 1 kg block of ice is removed from a freezer where its temperature was 10C. The amount of heat absorbed by the ice as it warms to 0C is
a. 2,000 J.
b. 4,000 J.
c. 20,000 J.
d. 40,000 J.
e. 334,000 J.
[Ques. 3] Which mechanism(s) of heat transfer will work in a vacuum?
a. conduction b. convection
c. radiation d. none of the above
[Ques. 4] The temperature of a gas can be increased by
a. compressing it.
b. adding heat to it.
c. doing work on it.
d. all of the above.
e. none of the above.
[Ques. 5] The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water. The amount of heat required to boil away 1 kg of water is __________ the amount of heat required to melt 1 kg of ice.
a. one tenth
b. equal to
c. 10 times
d. unrelated to
[Ques. 6] The specific heat capacity of water is about twice the specific heat capacity of ice. From this information, the amount of heat required to boil 1 kg of water is ________ the amount of heat required to melt 1 kg of ice.
a. 1/2 b. equal to
c. 2 times d. unrelated to
[Ques. 7] What's wrong with the statement heat rises?
a. Nothingheat does rise.
b. One should say energy rises..
c. One should say heated air (or other fluid) rises..
d. none of the above
[Ques. 8] Natural processes tend to increase the __________ of thermodynamic systems.
a. temperature b. internal energy
c. Carnot efficiency d. entropy
[Ques. 9] When droplets of condensation form on the outside of a glass of ice water, it must be that in the air right next to the glass
a. the temperature is near the dew point.
b. the humidity is near the saturation density.
c. the relative humidity is near 100.
d. all of the above
[Ques. 10] When water boils, its temperature
a. increases. b. decreases.
c. stays constant. d. cannot be determined.
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