PhysicalChemistryequationofstate状态方程ideaperfectgas理想气体kinetictheoryofgases气体分子动理论modelfitting模型拟合rootmeansquarerate根均方速率zerothlawofthermodynamics热力学第零定律translationalenergy平动能phasediagram相图isotherm等温线isobar等压线distributionfunction分布函数mostprobablerate最概然速率mathematicalaveragerate数学平均速率fluctuation涨落现象freepath自由程meanfreepath平均自由程reducedmass折合质量effusion隙流lawofeffusion隙流定律compressibilityfactorZ压缩因子BoyletemperatureBoyle温度Internalpressure内压力Virialcoefficient维利系数Criticaltemperature临界温度Criticalpoint临界点Wilso