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2 mole of an ideal mono atomic gas under...

2 mole of an ideal mono atomic gas undergoes a reversible process for which `PV^(2)=C`. The gas is expanded from initial volume of 1L to a final volume of 3L starting from initial temperature of 300K. Find `DeltaH` for the process

A

`-600R`

B

`-1000R`

C

`-3000R`

D

`-2k` Cal

Text Solution

Verified by Experts

The correct Answer is:
B, D
For the given process conditions is `PV^(2)`= constant (or) `((nTR)/(V)) (v^(2))=` constant (or) `T_(1) V_(1) = T_(2) V_(2)`
So Final temperature `T_(2) = (1 xx 300)/(3) = 100K`
`Delta H = nC_(P) Delta T = 2 xx (5)/(2) R xx 200 = - 1000R`
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