The total kinetic energy of translatory motion of all the molecules of 5 litres of nitrogen exerting a pressure P is 3000 J.
see full answer
High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET
🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya
a
The total k.E. of 10 litres of N2 at a pressure of 2P is 3000J
b
The total k.E. of 10 litres of He at a pressure of 2P is 3000J
c
The total k.E. of 10 litres of O2 at a pressure of 2P is 20000J
d
The total k.E. of 10 litres of Ne at a pressure of 2P is 15000 J
answer is C.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
K.E of translation of any gas = 32nRT=32PVGiven, 3000=32PV⇒PV=2000 (1)Total KE of a gas = f2nRT=f2PVf = 5 (for N2 and O2 ) f = 3 (for He and Ne).Hence, for O2 and N2 , E=522P2V=10PV=102000=20000JAnd for He and Ne, E=322P2V=6PV=62000=12000J.