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For a given at 1 atm pressure, rms speed of the molecules is 200 m/s at 127ºC. At 2 atm pressure and at 227ºC, the rms speed of the molecules will be –

(1) 100 m/s  (2) 80√5 m/s  (3) 100√5 m/s  (4)  80 m/s

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Correct option   (3) 100√5 m/s 

 Explanation:

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