Question

1 mole of a gas with gamma =7/5 and with 1 mole of gas with gamma= 5/3 then the value of gamma of the resulting?

Answer 1

Use the formula

(n1+n2)/(γ-1) = n1/(γ1-1) + n2/(γ2-1)

(1+1)/(γ-1) = 1/(7/5 - 1) + 1/(5/3 - 1)

2/(γ-1) = 5/2 + 3/2 = 4

(γ-1) = 1/2

γ = 3/2 or 24/16