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The molecules of a given mass of a gas have RMS
P speed of \( 200 \mathrm{~m} / \mathrm{s} \) at \( 300 \mathrm{~K} \) and 1,00,000 bar pressure.

W When the absolute temperature is doubled and the pressure is halved, the RMS speed of molecules will become
(1) \( 200 \mathrm{~m} / \mathrm{s} \)
(2) \( 400 \mathrm{~m} / \mathrm{s} \)
(3) \( 100 \mathrm{~m} / \mathrm{s} \)
(4) \( 200 \sqrt{2} \mathrm{~m} / \mathrm{s} \)
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