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Q.

The average molar mass of air is 28.8. An open vessel at 27°C is heated upto t°C until 1/3rd of the air measured at final temperature escapes out. The rms velocity of air molecules at t°C is nearly

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a

588 m sec-1

b

515 m sec-1

c

340 m sec-1

d

420 m sec-1

answer is D.

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Detailed Solution

Volume and pressure are kept constant

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