Question 940: Thermodynamics & KTG

Question

A perfect gas of volume 10 litre n compressed isothermally to a volume of 1 litre. The rms speed of the molecules will

Accepted Answer

Since it is compressed isothermally, the temperature remains constant. The rms speed is given by,
$$c=\sqrt{\frac{3RT}{M}}$$
Since temperature T remains constant, the rms speed remains unchanged.

Answer

decrease 5 times

Answer

remain unchanged

Answer

increase 5 times

Answer

increase 10 times

Thermodynamics & KTG

A perfect gas of volume 10 litre n compressed isothermally to a volume of 1 litre. The rms speed of the molecules will

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