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ScotlandChemistryQuick questions

Area 3: Chemistry in Society

Quick questions on Controlling the rate and equilibrium: Le Chatelier's principle - SQA Higher 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 q1?
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Predict the effect of increasing the pressure on N2(g)+3H2(g)⇌2NH3(g)N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g). [2 marks]
What is q2?
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Explain why a catalyst does not change the yield at equilibrium. [2 marks]
What is q3?
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For the exothermic reaction 2SO2(g)+O2(g)⇌2SO3(g)2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3(g), predict and explain the effect of lowering the temperature on the yield of SO3SO_3. [2 marks]

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