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Question

Question: The r.m.s. speed of molecules of a gas of density 4.0 kg m<sup>–3</sup> and pressure 1.2 × 10<sup>5<...

The r.m.s. speed of molecules of a gas of density 4.0 kg m–3 and pressure 1.2 × 105 Nm–2 is –

A

300 m s–1

B

900 m s–1

C

600 m s–1

D

400 m s–1

Answer

300 m s–1

Explanation

Solution

u = 3Pd\sqrt{\frac{3P}{d}}