26. The heat of fusion is the amount of heat required to:
a) Vaporize a substance
b) Melt a substance
c) Change the phase of a substance from solid to gas
d) Change the phase of a substance from gas to solid
27. The heat of vaporization is the amount of heat required to:
a) Vaporize a substance
b) Melt a substance
c) Change the phase of a substance from solid to gas
d) Change the phase of a substance from gas to solid
28. The adiabatic process is one in which:
a) Heat is transferred to the system
b) Heat is transferred from the system
c) No heat is transferred to or from the system
d) The system is in thermal equilibrium
29. The heat capacity of an object depends on its:
a) Mass
b) Volume
c) Temperature
d) All of the above
30. The efficiency of a Carnot engine depends on:
a) The temperature of the hot reservoir
b) The temperature of the cold reservoir
c) The difference in temperature between the hot and cold reservoirs
d) All of the above
