Chapter 2: Equilibrium, Kc, Kp and Industrial Compromise

A-level ChemistryModule 5: Physical Chemistry & Transition Elements8 topicsHigher

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Module 5: Physical Chemistry and Transition Elements: Equilibrium, Kc, Kp and Industrial Compromise - Authored Long Answer Questions

Examiner-style long-answer practice with automatic marking, improvement advice and ProofCoach tracking.

4 questions25 marks37.5 min

standard / hard

6 marksdescribestandardOCR A

For Equilibrium, Kc, Kp and Industrial Compromise, describe how Kp expressions and industrial compromise applies to sulfur trioxide formation in the Contact process.

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6 markscalculatehardOCR A

Using sulfur trioxide formation in the Contact process, calculate a relevant OCR A Equilibrium, Kc, Kp and Industrial Compromise quantity and explain the physical or chemical meaning of the answer. Show equation, substitution, answer and unit.

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7 marksexplainhardOCR A

Equilibrium, Kc, Kp and Industrial Compromise: Total pressure (kPa) vs Equilibrium sulfur trioxide mole fraction (no.)

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The graph for Equilibrium, Kc, Kp and Industrial Compromise shows data from sulfur trioxide formation in the Contact process. Explain the pattern using the data and relevant chemistry principles.

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6 marksevaluatestandardOCR A

In sulfur trioxide formation in the Contact process, evaluate the experimental method or model assumptions used when applying Kp expressions and industrial compromise.

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1. Rate Equations and Rate-Determining Step

3. Acids, pH, Ka and Buffers

Key learning objectives

Understand the key principles behind Equilibrium, Kc, Kp and Industrial Compromise.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.