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A mixture of hydrogen gas and theortica...

A mixture of hydrogen gas and theortical amount of air at `25^(@)` C and a total pressure of 1atm , is exploded in a closed right vessel . If the process ossurs under adiabatic conditions then using the given data anwer the question that follow :
Given :
`C_(p)(N_(2))and C_(p)(H_(2)O)"are" 8.3 and 11.3 caldeg^(-1)mol^(-1)` not necessarily in the same order.
`DeltaH_(f)[H_(2)O(g)]=-57.8kcal`
`["take air as "80% N_(2),20%O_(2)"by volume".]`
If at a initial temperature `T_(1),(e_(1))` is initial energy and higher final temperature ,`T_(2),E_(2)` is the final internal energy , then which option is true?

A

`E_(1) gt E_(2)`

B

`E_(2) gt E_(1)`

C

`E_(1) = E_(2)`

D

can't be compared from the given data

Text Solution

Verified by Experts

The correct Answer is:
C
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