Heat & Temperature

As atmospheric pressure increases, the boiling temperature of a liquid

• decrease

• 100* C

• increases

• 0* C

Some molecules are able to absorb large amounts of thermal energy. Materials composed of such molecules would have

• high specific heat capacity

• low specific heat capacity

• the same heat capacity

Which would burn the most?

• 100 g of water at 100 degrees C

• 100 g of steam at 100 degrees C

• both would burn equally

Which, at the same temperature, will cool more slowly on a hot day?

• dry beans

• watermelon

• bread

Water boils when

• water turns to vapor at the bottom of or in the liquid

• trapped air in the liquid is heated

• trapped air in the liquid rises to the surface

• all the above

Evaporation takes place when matter changes from a

• solid to a liquid

• solid to a gas

• liquid to a gas

• gas to liquid

The process of changing from a gas to liquid is evaporation

• true

• false

What is temperature?

• energy transfer

• measurement of potential

• average kinetic energy

Mix some 70* C water with some 40* C water and you can get water at

• temperature depending on the masses or volumes of water

• 70* C

• 40* C

• 55*C

Morning dew on the grass is a result of

• evaporation of water

• air pressure and water vapor

• the open structured form of water crystals

• slow moving molecules condensing on the grass