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ADNAN MUHAMMED

Grade 12,

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Q. B 2 I am trying but I am getting answer 8 g as molar mass. But answer is hydrogen.

Q. B 2 I am trying but I am getting answer 8 g as molar mass. But answer is hydrogen.

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1 Answers

Khimraj
3007 Points
5 years ago
rms velocity is given as 
Vrms = \sqrt{3RT/M}
So
1930 = \sqrt{3*8.31*300/M}
So
M = 0.002 Kg = 2gm
SInce gas is diatomic 
So it is Hydrogen gas.
Hope it clears. If you like answer then please approve it.

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