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Chemical equilibrium — Question 1

QCAA 2024, Paper 1 · 1 mark

Q1 · 2024 · Paper 1Unclassified1 mark

QUESTIONS 1–2 Questions 1–2 refer to hydrated copper sulfate and its decomposition when heated.

Hydrated copper sulfate (CuSO4·H2O) decomposes to form copper sulfate (CuSO4) and water when heated.

heat + CuSO4·H2O(s)

CuSO4(s) + H2O(g)

QUESTION 1

Which of the following is exchanged with the surrounding environment when CuSO4·H2O(s) is heated in a closed system to establish dynamic equilibrium?

(A) heat

(B) H2O(g)

(C) CuSO4(s) + H2O(g)

(D) heat + CuSO4·H2O(s)

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