(1) p V / T = C , p = C T / Vp2 / p1 = T2/V2 * V1/T1 = 3(2)平均平动动能 εt =3/2 k T ∝ T , εt2 / εt1 = T2/T1 = 1.5方均根速率 vrms ∝ √T , vrms2 / vrms1 = √1.5 = 1.22