The standard molar entropy of an ideal gas is 2.5 cal/K mol at 25°C and 1 bar. The standard molar entropy of the gas at 323°C and 1 bar is.
[Given : Heat capacity ratio of gas ( γ ) = 34 ,
ln2=0.7 ]
(A) undefined
(B) 4Rln2
(C) 5.6 cal/K-mol
(D) 8.1 cal/K-mol