13.
The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight.

15.
In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is

19.
Pick out the wrong unit conversion of thermal conductivity.

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