1.

If 1 gram of each of the following gases are taken at STP, which of the gases will occupy (a) greatest volume and (b) smallest volume ? CO,H_(2)O,CH_(4),NO

Answer»

Solution :MOLAR VOLUME ofa gas, i.e., volume of 1 mole of the gas =22.7 L at STP
1 mole of CO=28 g, i.e., 28 g of CO have volume =22.7 L at STP
`:.` 1 g of CO will have volume `=(22.7)/(28)` L at STP
Similarly, `""1 g of H_(2)O" vapour"=(22.7)/(18)`L,1 g `CH_(4)=(22.7)/(16)"L",1 g NO=(22.7)/(30)"L"`
Thus, 1 g of `CH_(4)` will occupy MAXIMUM volume and 1 g of NO will occupy minimum volume at STP.


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