At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed

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Q 1115601569.     At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed (mp) of gas Y at 60 K. The molecular weight of the gas Y is
JEE 2009
A

1

B

2

C

3

D

4

HINT

Use formula: U_(rms) = sqrt ((3RT)/M) U_(mp) = sqrt ((2RT)/(M))

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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