Questions
At what temperature will oxygen molecules have the same root mean square speed as hydrogen molecules at 200 K?
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a
527°C
b
1327°C
c
2127°C
d
2927°C
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Correct option is D
For oxygen: vrms=3kT0m0For hydrogen: vrms=3kThmhThe value of vrms will be the same if T0m0=Thmhor T0=m0mh×Th=16×200 =3200K=2927∘CHence the correct choice is (4).Similar Questions
If four molecules of a gas have speed 2, 4, 6, 8 kms-1 respectively, then root mean square speed (in kms-1) will be .. and respectively.
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