Question

1.Sublimation refers to

a. the vaporization of a solid without first becoming a liquid b. the melting point of solid    c. the vaporization of a liquid d. the condensation of a gas into a liquid

2.A pressure cooker cooks food more rapidly than an ordinary cooking pot with a loose lid because __

a. the pressure forces heat into the food b. the higher pressure lowers the boiling point of water    c. the higher pressure raises the boiling point of water d. the higher pressure increases the specific heat of water

3. In which of the following is coefficient of volume expansion is constant    a. solids b. liquids    c. gases d. plasma

4.As water freezes, its temperature a. decreases b. increases   c. remains constant d. cannot be determined

5.Which of the following has the highest specific heat? a. water b. iron    c. alcohol    d. aluminum

6. Expansion is greatest in a. solids b. liquids    c. gases    d. any of the above

7.The heat of vaporization of a substance is a. less than its heat of fusion    c. greater than its heat of fusion b. equal to its heat of fusion

d. any of the above

8.When a vapor condenses into a liquid, a. it absorbs heat c. its temperature rises b. it evolves heat d. its temperature drops

9.The freezing point of water is 00C.Its melting point is a. slightly less than o0C c. slightly more than 00C b. 00C d. 32 0C

10.The volume of a gas sample is proportional to its

a. Fahrenheit scale b. Celsius scale c. absolute scale d. pressure

Answer 1