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At what temperature will the total KE of...

At what temperature will the total `KE` of `0.3 mol` of `He` be the same as the total `KE` of `0.40 mol` of `Ar` at `400K` ?

A

`533K`

B

`400K`

C

`346K`

D

`300K`

Text Solution

Verified by Experts

The correct Answer is:
1
`[(3)/(2)nRT]_(He)=(3)/(2)nRT`
`0.3T=0.4xx400`
`T=533K`
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