1. The specific heat of an object is:
A. the amount of heat energy to change the state of one gram of the substance
B. the amount of heat energy per unit mass emitted by oxidizing the substance
C. the amount of heat energy per unit mass to raise the substance from its freezing to its boiling point
D. the amount of heat energy per unit mass to raise the temperature of the substance by 1 degree C
E. the temperature of the object divided by its mass

2. The energy given off by 300 grams of an alloy as it cools through 50degree C raises the temperature of 300 grams of water from 30 degree C to 40 degree C. The specific heat of the alloy (in cal/g ×°C) is:
A. 0.015
B. 0.10
C. 0.15
D. 0.20
E. 0.50

3. The heat capacity of object B is twice that of object A. Initially A is at 300 K and B is at 450 K. They are placed in thermal contact and the combination is isolated. The final temperature of both objects is:
A. 200 K
B. 300 K
C. 400 K
D. 450 K
E. 600 K

4. During the time that latent heat is involved in a change of state:
A. the temperature does not change
B. the substance always expands
C. a chemical reaction takes place
D. molecular activity remains constant
E. kinetic energy changes into potential energy

5. How many calories are required to change one gram of 0 degree C ice to 100 degree C steam? The latent heat of fusion is 80 cal/g and the latent heat of vaporization is 540 cal/g. The specific heat of water is 1.00 cal/g × K.
A. 100
B. 540
C. 620
D. 720
E. 900

6. According to the first law of thermodynamics, applied to a gas, the increase in the internal energy during any process:
A. equals the heat input minus the work done on the gas
B. equals the heat input plus the work done on the gas
C. equals the work done on the gas minus the heat input
D. is independent of the heat input
E. is independent of the work done on the gas


Pressure vs. volume graphs for a certain gas undergoing five different cyclic processes are shown below. During which cycle does the gas do the greatest positive work?

A. I
E. V

8. In a certain process a gas ends in its original thermodynamic state. Of the following, which is possible as the net result of the process?
A. It is adiabatic and the gas does 50 J of work
B. The gas does no work but absorbs 50 J of energy as heat
C. The gas does no work but rejects 50 J of energy as heat
D. The gas rejects 50 J of heat and does 50 J of work
E. The gas absorbs 50 J of energy as heat and does 50 J of work

9. Of the following which might NOT vanish over one cycle of a cyclic process?
A. W + Q
B. Dp
C. Q

10. The rate of heat flow through a slab does NOT depend upon the:
A. temperature difference between opposite faces of the slab
B. thermal conductivity of the slab
C. slab thickness
D. cross-sectional area of the slab
E. specific heat of the slab


The diagram shows four slabs of different materials with equal thickness, placed side by side. Heat flows from left to right and the steady-state temperatures of the interfaces are given. Rank the materials according to their thermal conductivities, smallest to largest.

A. 1, 2, 3, 4
B. 2, 1, 3, 4
C. 3, 4, 1, 2
D. 3, 4, 2, 1
E. 4, 3, 2, 1

12. An iron stove, used for heating a room by radiation, is more efficient if:
A. its inner surface is highly polished
B. its inner surface is covered with aluminum paint
C. its outer surface is covered with aluminum paint
D. its outer surface is rough and black
E. its outer surface is highly polished

13. A thermos bottle works well because:
A. its glass walls are thin
B. silvering reduces convection
C. vacuum reduces heat radiation
D. silver coating is a poor heat conductor
E. none of the above

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