15. which of the following is accurate when discussing specific heat?

a. specific heat values for solids will never vary for different ranges of temperature.
b. the specific heat of a gas can be measured at constant volume only.
c. specific heat values for liquids will never vary for different ranges of temperature.
d. the specific heat of a gas may be measured at constant pressure

Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.