At 400 K, the root mean square (rms) speed of a gas x (mol. mass = 40) is equal to most probable speed of gas y at 60 K. Find the molecular mass of gas y.
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answer is 4.
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Detailed Solution
∵ urms=uMP∴3RTMx=2RTMy or 3R×40040=2R×60My or My=4