An ideal gas has a specific gas constant R of 1885JkgK Its s

An ideal gas has a specific gas constant R of 188.5J/kgK. Its specific heat at constant pressure C_p is 1680J/kgK. What is the value of the specific heat at constant volume C_v of this gas?

Solution

sol:

Given specific gas constant R = 188.5 J/kg.K

specific heat at constant pressure Cp = 1680 J/kg.K

we know that specific gas constant R = Cp - Cv

therefore Cv = Cp - R

Cv = 1680 - 188.5 = 1491.5 J/Kg.K