Question

For which gas y equal to cp upon cv will be maximum

Answer 1

degree of freedom for monoatomic gas = 3

            Cv = 3R/2

            Cp=  5R/2

gamma = 1.6

degree of freedom for diatomic gas = 5

            Cv= 5R/2

            Cp = 7R/2

gamma = 1.4

degree of freedom for triatomic gas = 6

           Cv = 3R

            Cp= 4R

gamma = 1.3

so we can see that gamma is highest for MONOATOMIC GAS (1.6)