0653.C1.1.03 — Describe changes of state in terms of melting, 5 Explain changes of state in terms of kinetic boiling, evaporating, freezing and condensing : past paper questions
Real questions on 0653.c1.1.03 — describe changes of state in terms of melting, 5 explain changes of state in terms of kinetic boiling, evaporating, freezing and condensing
The newest 12 of 12 written questions. Open one to see it on the real paper.
- 0653/32 · February/March 2025 · Q4b(ii)[2]
Table 4.1 melting point / °C boiling point / °C –13 785 mixture of sodium and potassium Room temperature is 25 °C. Deduce whether the mixture of sodium and potassium is a solid, a liquid or a gas at room temperature. Use Table 4.1 to explain your answer. solid, liquid or gas explanation The melting point and boiling po...
See it on the paper → - 0653/43 · May/June 2024 · Q2b[2]
Oxides of nitrogen are simple molecules. Explain why oxides of nitrogen have low boiling points. Use ideas about forces and energy in your answer.
See it on the paper → - 0653/32 · February/March 2024 · Q8b[2]
Ethene is a gas at room temperature and pressure. Describe the arrangement and motion of particles in gases. arrangement motion
See it on the paper → - 0653/43 · October/November 2023 · Q3a(ii)[1]
The temperature of the water is 15 °C. State what happens to the water when it is heated from 15 °C to 600 °C.
See it on the paper → - 0653/22 · May/June 2022 · Q14[1]
Which row describes changes 1, 2 and 3?
See it on the paper → - 0653/22 · May/June 2022 · Q18[1]
Which powders react to produce water?
See it on the paper → - 0653/43 · May/June 2022 · Q5d(ii)[1]
During combustion, water forms as a gas. State the change that occurs when the gas collects as a liquid on the cold surface in Fig. 5.2.
See it on the paper → - 0653/43 · May/June 2022 · Q5d(iii)[1]
State the name of the other product formed during the complete combustion of ethene.
See it on the paper → - 0653/43 · May/June 2022 · Q6a(i)[1]
State the temperature of the melting ice. temperature = °C
See it on the paper → - 0653/43 · May/June 2022 · Q6b[2]
Ice is a solid. Water is a liquid. Describe the differences between a solid and a liquid in terms of: • the forces between the molecules • the motion of the molecules.
See it on the paper → - 0653/32 · February/March 2022 · Q6a(i)[2]
A visible cloud rises above the water in the beaker. Identify the processes that occur to form this cloud.
See it on the paper → - 0653/32 · February/March 2022 · Q6a(ii)[2]
There is more water vapour above the water surface at 90 °C than at 20 °C. Explain why, in terms of the motion of water molecules.
See it on the paper →
What examiners said
Most candidates found this question challenging. Candidates had to use the information in Table 4.1 to decide the state of the mixture of sodium and potassium at room temperature. Room temperature, 25 °C, is warmer that the melting point of –13 °C, and colder than the boiling point of 785 °C. Therefore, the mixture is a liquid. Candidates should be reminded that the melting point and the freezing...
— Examiner report, February/March 2025, 0653/32 Q4(b)(ii) (Cambridge)
Most candidates gained at least partial credit for this question. They expressed their answers in a variety of ways. The important points to make were the random arrangement of particles in a gas and that they move quickly. Candidates who referred to the word ‘packed’ were not given credit because this implies that the particles are close together.
— Examiner report, February/March 2024, 0653/32 Q8(b) (Cambridge)
Most candidates understood that the water would boil or become a gas.
— Examiner report, October/November 2023, 0653/43 Q3(a)(ii) (Cambridge)
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