Physics 221 Worksheet: Chapters 13-14, Temperature and Heat

1) Which of the following is considered an absolute temperature scale?

a) Fahrenheit

b) Celsius

c) Centigrade

d) Kelvin

2) If the temperature and pressure of an ideal gas are both doubled, the volume will be

a) unchanged.

b) doubled.

c) cut in half.

d) multiplied by four.

e) divided by four.

3) The heat required to convert one gram of a substance from liquid to steam is called

a) specific heat capacity.

b) heat of fusion.

c) heat of vaporization.

d) boiling point.

4) When the temperature of a gas increases

a) the gas will expand.

b) the pressure will increase.

c) the molecules will move faster.

d) all of the above will happen.

5) The number of molecules in one mole of a substance

a) depends on the molecular weight.

b) depends on the pressure.

c) depends on the temperature.

d) is the same for all substances.

6) Oxygen molecules are 16 times more massive than hydrogen molecules. At a given temperature the hydrogen molecules are moving ___ as fast as the hydrogen molecules.

a) four times

b) 16 times

c) one fourth

d) one sixteenth

7) 100 calories of heat are added to equal masses of water (c = 1cal/g°C), iron (c = 0.11cal/g°C) and copper (c = 0.093 cal/g°C) initially at the same temperature. Afterward

a) the water is the hottest and the copper the coolest.

b) the water is the coolest and the copper the hottest.

c) the water is the hottest and the iron the coolest.

d) the iron is the hottest and the copper the coolest.

8) Adding heat to a mixture of melting ice and water causes

a) the temperature of the ice to rise.

b) the temperature of the water to rise.

c) more ice to melt.

d) all of the above.

e) none of the above.

Ans: 1-d, 2-a, 3-c, 4-c, 5-d, 6-a, 7-b, 8-c