CBSE Class 11-science Answered

The two principal specific heats of a gas are:

a.     Specific heat of a gas at constant volume (c_v)

b.     Specific heat of a gas at constant pressure (c_p)

Specific heat of a gas at constant volume (c_v): is defined as the amount of heat energy required to raise the temperature of one gram of gas through 1 degree Celsius or 1 K, when the volume of the gas is kept constant.

Specific heat of a gas at constant pressure (c_p): is defined as the amount of heat energy required to raise the temperature of one gram of gas through 1 degree Celsius or 1 K, when the pressuree of the gas is kept constant.