关于含有饱和汽的混合气体的计算问题 ,在物理竞赛中时有出现 ,但是学生们常会混同一般理想气体进行计算 .为了分清它们的不同 ,需先弄清饱和汽的性质 :1 .在同一温度下 ,不同液体的饱和汽压一般不同 ,挥发性大的液体的饱和汽压大 .2 .温度一定时 ,同种液体的饱和汽压与饱和汽 The calculation of mixed gas containing saturated steam has occasionally appeared in physics competitions, but students often do calculations with common ideal gases. In order to distinguish between them, it is necessary to clarify the nature of saturated steam: 1. At the same temperature In the following, the saturation vapor pressures of different liquids are generally different. The saturated vapor pressure of large volatile liquids is large. 2. When the temperature is constant, the saturation vapor pressure and saturation vapor of the same liquid