Problem: The reaction A2 + B2 ⇌ 2 AB has an equilibrium constant Kc =1.5. The following diagrams represent reaction mixtures containing A2 molecules (red), B2 molecules (blue), and AB molecules.For mixture (iii), how will the reaction proceed to reach equilibrium?

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FREE Expert Solution

We are being asked to determine the condition for mixture (iii) to reach equilibrium.

We will use the reaction quotient, Q, to determine if the chemical reaction would be at equilibrium or not. 

The formula for Q is:

Q = productsreactants


Depending on if Q is greater than or less than K, our reaction will shift to attain equilibrium by reaching the equilibrium constant K:

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Problem Details

The reaction A2 + B2 ⇌ 2 AB has an equilibrium constant Kc =1.5. The following diagrams represent reaction mixtures containing A2 molecules (red), B2 molecules (blue), and AB molecules.

For mixture (iii), how will the reaction proceed to reach equilibrium?

A figure showing three diagrams of molecular mixtures. In diagram (i) there is 1 A2 molecule, 1 B2 molecule, and 6 AB molecules. In diagram (ii) there are 3 A2 molecules, 2 B2 molecules, and 3 AB molecules. In diagram (iii) there are 3 A2 molecules, 3 B2 molecules, and 2 AB molecules.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Chemical Equilibrium concept. You can view video lessons to learn Chemical Equilibrium. Or if you need more Chemical Equilibrium practice, you can also practice Chemical Equilibrium practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Odejinmi's class at SLCC.