10. For an ideal gas Cv = 0.157 kcal/(kg.K) and R = 260 m-N/(kg.K) the specific heats ratio (?) is
A. 1.396
B. 2.532
C. 1.653
D. 1.333
10. For an ideal gas Cv = 0.157 kcal/(kg.K) and R = 260 m-N/(kg.K) the specific heats ratio (?) is
A. 1.396
B. 2.532
C. 1.653
D. 1.333