摘要
用多组分汽体流动热量计测定不同组成的乙酸－４－甲基－２－戊酮二元体系在１０１．３ｋＰａ和系列温度下的汽体热容．结果表明热容的非理想性很大，该二元体系的汽体热容相对于理想混合呈负偏差．讨论了汽相缔合、分子极性作用对结果的影响．
he vapor heat capacities at various tempetatures at 101.3kpa of aceticacid-4-methy 1-2-pentan one binary system,were measured with a multicomponent vapor flow calorimeter.The results showed that there were obvious association action between acetic acid molecules at the vapor phase and that the vapor heat capacities of the mixtures were negative compered with those of the ideal mixtures.They were discussed by,the association and interaction among the vapor molecules.
