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The enthalpy of formation of ammonia is ...

The enthalpy of formation of ammonia is `-46.0 KJ mol^(-1)` . The enthalpy change for the reaction `2NH_(3)(g)rarr N_(2)(g)+3H_(2)(g)` is :

A

46 kJ

B

92.0 kJ

C

`-23.0` kJ

D

`-92.0` kJ

Text Solution

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The correct Answer is:
B
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