Case study·Standard multi-step (3/5)·No calculator
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
Three sealed flasks contain the same reversible reaction at the same temperature. For the reaction, . Flask A has , flask B has , and flask C has .
Total: 5 marks
(a) State the shift in flask A. (1 mark)
(b) State the shift in flask B. (1 mark)
(c) State the shift in flask C. (1 mark)
(d) Which value remains common to all three flasks at this temperature? (2 marks)
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