Two flasks X and Y have capacity 1 L and...

Two flasks X and Y have capacity 1 L and 2 L respectively and each of them contains 1 mole of a gas. The temperature of the flasks are so adjusted that average speed of molecules in X is twice as those in Y. The pressure in flask X would be

same as that in Y

half of that in Y

twice of that in Y

8 times of that in Y

Text Solution

Verified by Experts

The correct Answer is:

P= `(1)/(3) ("mnu"^(2))/(V)`
`P_(X)/P_(Y)=(n_(X)u_(X)V_(Y))/(n_(Y)u_(Y)V_(X))=((N_(0)/(1000)))/((N_(0)/(2000)))xx2xx(2)/(1)=8`

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