Physics

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}

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

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

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