The pressure and density of a diatomic gas (γ=75) change adiabatically from (p,d) to (p',d'). If d′d=32, then P′P should be.
The pressure and density of a diatomic gas (γ=75) change adiabatically form (p1,d1) to (p2,d2). If d2d1=32, then p2p1 is