For a gas, the difference between the two specific heats is 4150 J/kgK. What is the specific heat at constant volume of gas if the ratio of specific heats is 1.4?

Given cp−cv=4150 ……..(i) and cn/cv=1.4⇒cp=1.4cv  …………(ii)By substituting the value of cp in Eq. (i), we get       1.4cv−cv=4150       ⇒ 0.4cv=4150∴ cv=41500.4=10375J/kg−K