Question

Two moles of a certain ideal gas at a temperature 300 K were cooled isochorically so that the gas pressure is reduced h (= 2) times. The gas is expanded isobarically afterwards till its temperature got back to original value. The total amount of heat absorbed by gas in this process is –

• A. (a) 2000 J
• B. 2500 J
• C. 3000 J
• D. 4000 J

Answer 1

(a)

PV = $\frac{1}{3}$ M₀ $v_{rms}^{2}$

v_rms = $\sqrt{\frac{3PV}{M_{0}}}$