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Effect on Kc

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Question

According to the chemical reaction $3 H_{2} (g) + N_{2} (g) ⇌ 2 N H_{3} (g) + e n e r g y$ , the forward reaction can best be described as a(n) :

i. Synthesis reaction
ii. Phase equilibrium
iii. Exothermic reaction

A

ii only

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B

i and ii only

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C

i and iii only

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D

ii and iii only

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E

i, ii and iii

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Solution

The correct option is B i and iii only
i. Synthesis reaction-Ammonia is produced in this reaction so it is a synthesis reaction.

ii. Phase equilibrium-Only gas-phase exist so phase equilibrium can not be valid for single phase.

iii. Exothermic reaction-yes, energy is released in this reaction so it is an exothermic reaction.

Hence the correct option is C.

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