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| 1. |
Isn't the result of the previous problem in contradiction with the fact that the ideal gas isochore in p-T coordinates is represented by a linear graph, while the iso chore of saturated vapour is nonlinear. ( see 35.3 Fig. 35.2)? |
| Answer» Solution :As distinct from an ideal gas, whose MOLECULAR concentration (and density) does not change in an isochoric process, the molecular concentration and density) of a saturated VAPOUR rises with temperature because of additional EVAPORATION of the liquid. 22.3. The density of saturated vapour at `55^(@)C is 104.3 g//m^(3)`. Therefore at this temperature 8 g of saturated vapour occupies a VOLUME of `(8)/(10.4.3)=7.6xx10^(-3)m=7.6` litres. In a smaller volume there will be a PRECIPITATION of dew. | |