Question

what is the molar heat capacity of a diatomic gas in a process when the pressure changes from volume with p equal to KV​

Answer 1

Answer:

the molar heat capacity of the diatomic gas will be 3R

Explanation:

Given relation,

P = KV

=> PV⁻¹ = K

=> comparing this equation with the standard equation,

PVⁿ = constant, we get

n = -1

The molar heat capacity is given by,

Cv = [R/(y-1) - R/(n-1)]

for diatomic gases, y = 7/5

=> Cv = [R/(7/5-1) - R/(-1-1)]

=> Cv = 5R/2 + R/2

=> Cv = 3R

hence the molar heat capacity of the diatomic gas will be 3R