Ideal gases — Grade 11 Past Paper Questions

2 past paper questions on ideal gases from KwaZulu-Natal, 2025. Read what each one asks, then open it with its memo.

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2025 · Paper 1 · September · KwaZulu-Natal · Question 1

Multiple-choice questions covering: conjugate acid-base pairs of hydrogen phosphate; exothermic processes; Boyle's Law; and deviation of real gas behaviour from ideal behaviour.

acid-base pairsexothermic reactionsBoyle's lawideal and real gases
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2025 · Paper 1 · September · KwaZulu-Natal · Question 4,5

Short-answer questions on: calculating pH when mixing HCl and Ca(OH)₂ solutions; stating Boyle's Law; gas expansion in sealed chambers at constant temperature; and conditions for ideal gas behaviour.

pH calculationBoyle's lawgas expansionideal gases
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