Question

The Total Ke Of All The Molecules Of Helium Having A Volume V Exerting A Pressure P Is 1500J. The Total Ke In Joules Of All The Molecules Of N2 Having The Same Volume V And Exerting A Pressure 2P Is ______.

Answer 1

Answer:

Hi dear the answer is 3000

Explanation:

Use the formula

Ke=3/2p.v

Substitute and the answer remains to be as 3000.

Answer 2

Answer: 5000 joules

Explanation:

Helium is a monoatomic gas :(Degree of freedom)f =3

Assuming both the gases to be ideal:

$KE=f/2\times nRT=f/2\times PV(Ideal\ gas\ equation PV=nRT)$

$3/2\times PV=1500$

$PV=(1500\times 2)/3=1000$

For N₂: f=5 (Diatomic gas)

$KE=5/2\times 2PV\\KE\ for\ N_{2}\ gas=5/2\times 2PV=5/2\times 2000=5000$