Questions
In a vessel, the gas is at pressure P. If the mass of all the molecules is halved and their speed is doubled, then the resultant pressure will be
a
2P
b
P
c
P/2
d
4P
detailed solution
Correct option is A
As P=13mNVvrms2 .....(i)where m is the mass of each molecule, N is the total number of molecules, V is the volume of the gas. When mass of all the molecules is halved and their speed is doubled, then the pressure will beP'=13m2×NV×2vrms2 =23mNVvrms2=2P .....(using(i))Talk to our academic expert!
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