Q.
At what temperature the RMS speed of gaseous hydrogen molecules is double that of oxygen molecules at 470C
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a
20 K
b
40K
c
80K
d
160K
answer is C.
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Detailed Solution
Vrms=3RTMcondition given VrmsH=2VrmsOTHMH=2TOMO or THMH=4TOMO or TH=4TOMOMH TH=447+273322=80 K
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