115115114当平衡温度t=i实测值：=0误差分析：液相组成误差误差来源：1)称量时存在人为误差;I3)S10803.60C时，由图可以得到汽相组成误差实验中的滴定现象不是很明显,/使得滴定终点很难确定;:实验仪器的系统误差，造成数显仪上的数值误差。醋酸一一水二元汽液平衡数据NoT/CxHAcyHAc1118.11.001.002115.20.950.903113.10.900.8124109.70.800.6645107.40.700.5476105.70.600.4527104.30.500.3568103.20.400.2749102.20.300.19910101.40.200.31611100.30.050.03712100.000思考题：1为何液相中的浓度大于气相？答：醋酸水混合液有最低恒沸点，是正偏差溶液。2若改变实验压力，汽液相图将作如何变化，试用简图表明？温度5NoP(mmHg)xHAcyHAc172.100279.70.050.1054384.90.10.1828491.20.20.2932595.80.30.3943699.60.40.49477103.00.500.59238106.20.60.68569109.30.70.774610112.30.80.856811115.30.90.930712116.80.950.966313118.21.001105