A mixture of nitrogen and water vapours is admitted to a flask at 760 torr which contains a sufficient solid drying agent after long time the pressure reached a steady value of 722 torr. If the experiment is done at `27^(@)C` and drying agent increases in weight by `0.9 g`, what is the volume of the flask? Neglect any possible vapour pressure of drying agent and volume occupied by drying agent.

Options

A. `443.34L`
B. `246.3L`
C. `12.315L`
D. `24.63L`

Answer

D

Explanation

`p_(H_2O)= 760-722= (38)/(760)atm, n_(H_2O)= (0.9)/(18)`
`V= (0.9)/(18)xx (0.0821 xx 300)/(38)xx 760, V= 24.63L`.