For the following reactions, equilibrium constants are given:

The equilibrium constant for the reaction is:

Question

For the following reactions, equilibrium constants are given:

The equilibrium constant for the reaction  is:

Canvas Classes · Accepted Answer

Step 1 — Target reaction:

Step 2 — Construct from given reactions:
- Reverse reaction 1 twice: , 
- Use reaction 2: ,

Adding:

Step 3 — Combined K:

Answer: Option (2) —

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