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Physical Chemistry (PI5.1 Equilibrium constants)

Quick questions on Equilibrium Constants (PI5.1) - Eduqas A-Level Chemistry

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is units of KK?
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Do not assume KK is dimensionless; work out the units from the expression each time, because they depend on the stoichiometry.
What is q1?
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Write the KcK_c expression for N2(g)+3H2(g)⇌2NH3(g)\text{N}_2(\text{g}) + 3\text{H}_2(\text{g}) \rightleftharpoons 2\text{NH}_3(\text{g}). [1 mark]
What is q2?
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State the only factor that changes the value of the equilibrium constant, and explain why pressure does not. [2 marks]

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