The density of an ideal gas is when its pressure is

PHYSICS · Single correct · CBSE · Physics · Kinetic Theory · Kinetic Theory

Problem

The density of an ideal gas is

1.4\ \text{kg m}^{-3}

when its pressure is

0.1\ \text{MPa}

. What is the average translational speed of the gas molecules? (A)

0.46\ \text{m s}^{-1}

(B)

270\ \text{m s}^{-1}

(C)

460\ \text{m s}^{-1}

(D)

71\ \text{km s}^{-1}