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Consider folllowing reaction at 300 K : ...

Consider folllowing reaction at 300 K :
`N_(2)O_(5)(g)hArrN_(2)O_(5)(g)+O_(2)(g)` `K_(c)=5`
`N_(2)O_(5)(g)hArrN_(2)O(g)+O_(2)(g)`. For second reaction, if energy of activation of forward and backward reaction are respectively 85 and `42KJ//"mole"`, then at 400K, `K_(c)` for the second reaction is :

A

10

B

`lt10`

C

`gt10`

D

can be greater or less than 10

Text Solution

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The correct Answer is:
C
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