AMU Engineering 2019 solved paper Solved Paper

Given, r.m.s speed of a gaseous molecule is x m∕s at a pressure p atm.
We know that,
Kinetic theory of gas
r.m.s. speed =√

3RT

M

We know pV=RT
Then r.m.s. speed =√

3pV

M

As temperature is constant. So, pV is constant. Hence, r.m.s. speed is also constant. If the pressure is double at constant temperature, there is no change in r.m.s. speed.