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Elementary and Complex Reactions

For the react...

Question

For the reaction
N₂(g) + 3H₂ (g) ------2 NH₃ (g),K_p = 51
Find the value of K_p for the reaction
2 NH₃ (g) ------ N₂(g) + 3H₂ (g)

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Solution

For the reaction

N₂(g) + 3H₂ (g) ------2 NH₃ (g),K_p = 51

Now new reaction is reverse of the above. Thus according to the rule of equilibrium if reaction is reversed the Kp value go into the denominator.

2 NH₃ (g) ------ N₂(g) + 3H₂ (g)

Kp(new ) = 1/51 = 0.0196 Answer.

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{△ G}^{\oplus}

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