绝热,Q=0r = Cp,m / Cv,m = (Cv,m+R)/Cv,m = (3/2 R +R)/ (3/2 R) = 5/3T₁^r p₁^(1-r) = T₂^r p₂^(1-r)解得 T₂ = 228 KΔU=W = n Cv,m (T₂ - T₁) = - 4302 JΔH = n Cp,m...