`7g` of a gas occupies a volume of `4.1` litre at `300 K` If mol wt of gas occupies a volume of `4.1` litre at `300 K` If mol wt of gas is `42v` then find the pressuer of it .

Answer

10

Explanation

Given `w = 7g, V = 4.1 litre P = ? T = 300K, m = 42`
Now, `PV = (w)/(m) RT`
`:. P = (wRT)/(mV) = (7 xx 0.0821 xx 300)/(42xx 4.1) = atm` .