O-LevelChemistryAtomic Structure5070/11 · Oct/Nov 2023 · Q11 Mark

In which changes do the particles move further apart? 1 A gas is heated from 0°C to 25 °C. 2 Pressure is applied to a gas at a constant temperature. 3 Steam condenses to form water. 4 Water evaporates at room temperature.

A1 and 2

B1 and 4

C2 and 3

D3 and 4

✓ Correct answer

B: 1 and 4

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Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 1, question 1.

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