# ch18 - Chapter 19 TEMPERATURE HEAT AND THE FIRST LAW OF...

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Chapter 19: TEMPERATURE, HEAT, AND THE FIRST LAW OF THERMODYNAMICS 1. If two objects are in thermal equilibrium with each other: A. they cannot be moving B. they cannot be undergoing an elastic collision C. they cannot have di f erent pressures D. they cannot be at di f erent temperatures E. they cannot be falling in Earth’s gravitational f eld ans: D 2. When two gases separated by a diathermal wall are in thermal equilibrium with each other: A. only their pressures must be the same B. only their volumes must be the same C. they must have the same number of particles D. they must have the same pressure and the same volume E. only their temperatures must be the same ans: E 3. A balloon is f lled with cold air and placed in a warm room. It is NOT in thermal equilibrium with the air of the room until: A. it rises to the ceiling B. it sinks to the F oor C. it stops expanding D. it starts to contract E. none of the above ans: C 4. Suppose object C is in thermal equilibrium with object A and with object B. The zeroth law of thermodynamics states: A. that C will always be in thermal equilibrium with both A and B B. that C must transfer energy to both A and B C. that A is in thermal equilibrium with B D. that A cannot be in thermal equilibrium with B E. nothing about the relationship between A and B ans: C 5. The zeroth law of thermodynamics allows us to de f ne: A. work B. pressure C. temperature D. thermal equilibrium E. internal energy ans: C 270 Chapter 18: TEMPERATURE, HEAT, AND THE FIRST LAW OF THERMODYNAMICS

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6. If the zeroth law of thermodynamics were not valid, which of the following could not be con- sidered a property of an object? A. Pressure B. Center of mass energy C. Internal energy D. Momentum E. Temperature ans: E 7. The international standard thermometer is kept: A. near Washington, D.C. B. near Paris, France C. near the north pole D. near Rome, Italy E. nowhere (there is none) ans: E 8. In constructing a thermometer it is NECESSARY to use a substance that: A. expands with rising temperature B. expands linearly with rising temperature C. will not freeze D. will not boil E. undergoes some change when heated or cooled ans: E 9. The “triple point” of a substance is that point for which the temperature and pressure are such that: A. only solid and liquid are in equilibrium B. only liquid and vapor are in equilibrium C. only solid and vapor are in equilibrium D. solid, liquid, and vapor are all in equilibrium E. the temperature, pressure and density are all numerically equal ans: D 10. Constant-volume gas thermometers using di f erent gases all indicate nearly the same temper- ature when in contact with the same object if: A. the volumes are all extremely large B. the volumes are all the same D. the pressures are all extremely large C. the pressures are the same E. the particle concentrations are all extremely small ans: E Chapter 18: TEMPERATURE, HEAT, AND THE FIRST LAW OF THERMODYNAMICS 271
11. A constant-volume gas thermometer is used to measure the temperature of an object. When the thermometer is in contact with water at its triple point (273 .

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## This note was uploaded on 04/13/2008 for the course PHYSICS 108 taught by Professor Halstead during the Spring '08 term at SUNY Buffalo.

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ch18 - Chapter 19 TEMPERATURE HEAT AND THE FIRST LAW OF...

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