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Consider the reaction, 4 N O (2) (g) +...

Consider the reaction,
`4 N O _(2) (g) + O_(2) (g) to 2 N_(2) O _(5) (g) , Delta_(r) H = -1 1 1 K J` . If `N_(2) O_(5) (s)` is formed instead of `N_(2) O_(5) (g)` in the above reaction, the`Delta _(r) H` value will be
(given ,`DeltaH` of sublimation for `N_(2) O_(5)` is `54 KJ mol^(-1)`)

A

`+54 KJ`

B

`+219` KJ

C

`-219` KJ

D

`-165` KJ

Text Solution

Verified by Experts

The correct Answer is:
C
`4NO_(2)(g)+O_(2)(g) rarr 2N_(2)O_(5)(g), DeltaH =-1364 KJ`

`-111-54 = DeltaH'`
`DeltaH' =-165 KJ`
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