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For the real gases reaction, 2CO(g)+O(...

For the real gases reaction,
`2CO(g)+O_(2)(g)to2CO_(2)(g),DeltaH=-560 kJ.` In 10 litre rigid vessel at 500 K the initial pressure is 70 bar and after the reaction it becomes 40 bar. The change in internal energy is :

A

`-557 kJ`

B

`-530kJ`

C

`-563 kJ`

D

None of these

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The correct Answer is:
B
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