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1、.饱和蒸气压（ saturated vapor pressure ）在密闭条件中， 在一定温度下， 与液体或固体处于相平衡的蒸气所具有的压力称为饱和蒸气压。 同一物质在不同温度下有不同的蒸气压，并随着温度的升高而增大。不同液体饱和蒸汽压不同， 溶剂的饱和蒸汽压大于溶液的饱和蒸汽压；对于同一物质， 固态的饱和蒸汽压小于液态的饱和蒸汽压。例如，在30时，水的饱和蒸气压为4132.982Pa, 乙醇为10532.438Pa 。而在 100时，水的饱和蒸气压增大到101324.72Pa, 乙醇为 222647.74Pa 。饱和蒸气压是液体的一项重要物理性质，如液体的沸点、 液体混合物的相对挥发度等都与
2、之有关。饱和蒸气压曲线水在不同温度下的饱和蒸气压Saturated Water Vapor Pressures at Different Temperatures饱和蒸气饱和蒸气饱和蒸气压压压温度(Saturate温度(Saturate温度(Saturate(Temperaturdwater(Temperaturdwater(Temperaturdwatere)vapore)vapore)vaport/pressure)t/pressure)t/pressure)/( 103P/( 103P/( 103Pa)a)a)00.61129125232.012503973.610.6571612623
3、9.242514041.220.70605127246.662524109.630.75813128254.252534178.940.81359129262.042544249.150.87260130270.022554320.260.93537131278.202564392.271.0021132286.572574465.181.0730133295.152584539.091.1482134303.932594613.7101.2281135312.932604689.4111.3129136322.142614766.1121.4027137331.572624843.7131.
4、4979138341.222634922.3141.5988139351.092645001.8151.7056140361.192655082.3161.8185141371.532665163.8171.9380142382.112675246.3182.0644143392.922685329.8192.1978144403.982695414.3精品.202.3388145415.292705499.9212.4877146426.852715586.4222.6447147438.672725674.0精品.232.8104148450.752735762.7242.98501494
5、63.102745852.4253.1690150475.722755943.1263.3629151488.612766035.0273.5670152501.782776127.9283.7818153515.232786221.9294.0078154528.962796317.2304.2455155542.992806413.2314.4953156557.322816510.5324.7578157571.942826608.9335.0335158586.872836708.5345.3229159602.112846809.2355.6267160617.662856911.1
6、365.9453161633.532867014.1376.2795162649.732877118.3386.6298163666.252887223.7396.9969164683.102897330.2407.3814165700.292907438.0417.7840166717.832917547.0428.2054167735.702927657.2438.6463168753.942937768.6449.1075169772.522947881.3459.5898170791.472957995.24610.094171810.782968110.34710.620172830
7、.472978226.84811.171173850.532988344.54911.745174870.982998463.55012.344175891.803008583.85112.970176913.033018705.45213.623177934.643028828.35314.303178956.663038952.65415.012179979.093049078.25515.7521801001.93059205.15616.5221811025.23069333.45717.3241821048.93079463.15818.1591831073.03089594.259
8、19.0281841097.53099726.7精品.6019.9321851122.53109860.56120.8731861147.93119995.86221.8511871173.8312101336322.8681881200.1313102716423.9251891226.131410410精品.6525.0221901254.2315105516626.1631911281.9316106946727.3471921310.1317108386828.5761931338.8318109846929.8521941368.0319111317031.1761951397.63
9、20112797132.5491961427.8321114297233.9721971458.5322115817335.4481981489.7323117347436.9781991521.4324118897538.5632001553.6325120467640.2052011568.4326122047741.9052021619.7327123647843.6652031653.6328125257945.4872041688.0329126888047.3732051722.9330128528149.3242061758.4331130198251.3422071794.53
10、32131878353.4282081831.1333133578455.5852091868.4334135288557.8152101906.2335137018660.1192111944.6336138768762.4992121983.6337140538864.9582132023.2338142328967.4962142063.4339144129070.1172152104.2340145949172.8232162145.7341147789275.6142172187.8342149649378.4942182230.5343151529481.4652192273.8344153429584.5292202317.8345155339687.6882212362.5346157279790.9452222407.8347159229894.30
