10²³ molecules of a gas, each having a mass of 3 10⁻²⁷ ~kg strike per second per sq.cm of a rigid wall at an angle of 60^ with the normal and rebound with a velocity of 500 ~m / s . The pressure exerted by the gas molecules on the wall is

Step-by-step solution

According to the Newton's second law of motion: aligned & Pressure exerted on the wall = Rate of change of mometum no. of molecules Area & P= (2 m V 60^ ) N A = 2 3 10⁻²⁷ 5 10⁻² 60^ 10²³ 10⁻⁴ & P=1500 ~N / m ^2 aligned