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本刊今年第二期刊登的《物理化学教学程序系统的研制》一文中提到下列选择题: A、B构成二元溶液。当压力增加时,1)A的化学位应增加;2)若A的化学位增加则B的化学位应减少;3)若A的化学位减少则B的化学位应增加;4)若A的化学位增加则B的化学位应增加。正确答案是3)。应该怎样理解? 在一定温度下,物质A的化学位μA随压力的变化是
Articles published in the second issue of this year, “Physical Chemistry Teaching Program System” article mentions the following multiple choice questions: A, B constitute a binary solution. When the pressure is increased, 1) the chemical position of A should be increased; 2) the chemical position of B should be decreased if the chemical position of A is increased; 3) the chemical position of B should be increased if the chemical position of A is decreased; 4) The chemical position increases the chemical position of B should be increased. The correct answer is 3). How to understand? At a certain temperature, the chemical A μ of the chemical potential changes with pressure is