`1 g` mole of oxygen at `27^@ C` and (1) atmosphere pressure is enclosed in a vessel.  (a
Channel: Doubtnut
Date: 2020-07-12

`1 g` mole of oxygen at `27^@ C` and (1) atmosphere pressure is enclosed in a vessel.  (a) Assuming the molecules to be moving with `(v_(r m s)`, find the number of collisions per second which the molecules make with one square metre area of the vessel wall.  (b) The vessel is next thermally insulated and moves with a constant speed `(v_(0)`. It is then suddenly stoppes. The process results in a rise of temperature  of the temperature of the gas by `1^@ C`. Calculate the speed `v_0.[k = 1.38 xx 10^-23 J//K` and `N_(A) = 6.02 xx 10^23 //mol]`.