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The root mean square speed of the molecules of a diatomic gas is v. When the temperature is doubled, the molecules dissociate into two atoms. The new root mean square speed of the atom is(a) √2v (b) v (c) 2v (d) 4v |
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Answer» Correct Option (c) 2v Explanation: vrms √3RT/M . According to problem T will becomes T/2 and M will becomes M/2 so the value of vrms will increase by √4 = 2 times i.e. new root mean square velocity will be 2v. |
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