Question

If masses of all molecules of a gas are halved and their speed doubled, then the ratio of initial and final pressure is –

• A. 2 : 1
• B. 1 : 2
• C. 4 : 1
• D. 1 : 4

Answer 1

Answer: (A)

2 : 1

Answer 2

P = $\frac{m'.v_{rms}^{2}}{3V}$m