偏摩尔体积 Partial molar volume va ∨(b) J/pTn )偏摩尔体积与组成有关. (2)b点处的偏摩尔体积为负(此时, 日 b 加物质A会使总体积变小) Composition, n For a binary mixture, the composition can be changed by addition of dna of a and dng of B with the total volume changing by on P.7,B A′A BB偏摩尔体积 Partial Molar Volume (1) 偏摩尔体积与组成有关. (2) b点处的偏摩尔体积为负 (此时, 加物质A会使总体积变小). P,T ,n' J J n V V           =