Question

For a gas if gamma =1.4 then the atomicity , cp and cv of the gas

Answer 1

Answer:

cp/cv = 1.4

cp/cv = 14/10

cp/cv =7/5

so, cp = cv * 7/5

now cp - cv = R

cv7/5 - cv = R

2/5cv = R

so cv = 5/2R ,

now cv = f/2R

where f is the degree of randomness

therefore f = 5 which is the degree od randomness for atomicity = 2 and cv = 5/2 R and cp - cv = R now cp = cv + R

cp = 5/2R + R

= 7/2 R