Problem: The equilibrium constant forA + 2B ⇌ 3C is Kc=0.011Determine the equilibrium constant for the new reaction6C ⇌ 2A + 4BA) 91B) 8.3 × 103C) 1.2 × 10–2D) 0.022E) 46

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We're being asked to write the equilibrium constant  for the following reaction: 

6 C ⇌ 2 A + 4 B

We're given the reactions:     A + 2 B ⇌ 3 C              Kc = 0.011


To determine the equilibrium constant, K, of the reaction equation, we’re going to use Hess’s Law. We’re going to manipulate the reactions with given K value to get the reaction equation with the unknown K

Given reactions:

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Problem Details

The equilibrium constant for

A + 2B ⇌ 3C is Kc=0.011

Determine the equilibrium constant for the new reaction

6C ⇌ 2A + 4B

A) 91

B) 8.3 × 103

C) 1.2 × 10–2

D) 0.022

E) 46

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