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Two moles of an ideal mmonoatomic g...

Two moles of an ideal mmonoatomic gas occupies a volume V at `27 ^(@ ) C` . The gas expands adiabatically to a volume 2 V . Calculate ( a) the final temperature of the gas and (b ) change in its internal energy .

A

`189 K " " -2.7 KJ `

B

`195 K " " 2.7 KJ `

C

` 189 K " " 2.7 KJ `

D

`195 K " " -2.7 KJ `

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