Question

Assertion (A): Ratio of specific heats $C_{P}/C_{V}$ decreases with increases in temperature                                

Reason (R): With increase in temperature, C_P decreases at a higher a rate than C_v.

a) Both A and R are individually true and R is the correct explanation of A

b) Both A and R are individually true but R is not the correct explanation of A

c) A is true but R is false

d) A is false but R is frue