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The total KE of all the molecules of helium having a volume V exerting a pressure P is 1500J  The total KE in joule of all the molecules of N2 having the  volume 2V and exerting a pressure 2P is   

a
3000
b
4000
c
5000
d
6000

detailed solution

Correct option is D

P=23EE=3P2   energy  per  unit  volumeTotal  energy  E=3PV2For    He,   3PV2=1500For    N2, 3×2P×2V2=6PV=6000J

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