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Which of following statements are correctA. Average velocity of molecules of a gas in a container is zeroB. All molecules in a gas are moving with the same speedC. If an open container is heated from 300 K to 400 K the fraction of air which goes out with respect to originally present is `1/4`D. If compressibility factor of a gas at STP is less than unity then its molar volume is less than 22.4 L at STP |
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Answer» Correct Answer - A,C,D (C )`n_1T_1=n_2T_2` `nxx300=n_2xx400` `n_2=3/4n` excape out=`(n-3/4n)/n=1/4` (D)`(PV)/(RT)lt1` `Zlt1` Molar volume is less than 22.4 lit. at STP. |
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