Question

The R.M.S. speed of the molecules of a gas of density 4 kg m-3 and pressure 1.2 ×105 N m- 2 is :

• A. 120 ms-1
• B. 300 ms-1
• C. 600 ms-1
• D. 900 ms-1

Answer 1

Answer: (B)

300 ms-1

Answer 2

$V = \sqrt{\frac{3P}{d}}$