0654.C5.1.01 — State that an exothermic reaction transfers thermal energy to the surroundings leading to an increase in the temperature of the surroundings: past paper questions
Real questions on 0654.c5.1.01 — state that an exothermic reaction transfers thermal energy to the surroundings leading to an increase in the temperature of the surroundings
The newest 20 of 20 written questions. Open one to see it on the real paper.
- 0973/31 · May/June 2026 · Q6d(ii)[1]
During this reaction, thermal energy is transferred to the surroundings. State the name of the type of reaction that occurs during the complete combustion of methane.
See it on the paper → - 0973/41 · May/June 2025 · Q7a[1]
In the first stage, carbon (coke) is burnt to provide heat and produce carbon dioxide. State the type of reaction that transfers thermal (heat) energy to the surroundings.
See it on the paper → - 0973/31 · October/November 2024 · Q5b(i)[1]
The extraction of copper involves an endothermic reaction. State what is meant by an endothermic reaction.
See it on the paper → - 0973/32 · May/June 2024 · Q5b(iii)[1]
The combustion of ethanol is an exothermic reaction. State what is meant by an exothermic reaction.
See it on the paper → - 0973/31 · October/November 2023 · Q11a(ii)[2]
The reaction is exothermic. Describe two observations which show that a chemical reaction occurs between magnesium and dilute sulfuric acid.
See it on the paper → - 0973/31 · October/November 2022 · Q5b[1]
The reaction between molecule A and oxygen is exothermic. Describe what is meant by an exothermic reaction.
See it on the paper → - 0973/41 · October/November 2022 · Q2b(i)[1]
When n increases, the amount of energy released changes. State how the amount of energy released changes.
See it on the paper → - 0973/41 · October/November 2022 · Q2d(i)[1]
Burning butane is an exothermic reaction. State what is meant by an exothermic reaction.
See it on the paper → - 0973/31 · May/June 2022 · Q2c(iii)[1]
When fuels burn, the reaction produces a temperature increase. State the name given to all reactions that produce a temperature increase.
See it on the paper → - 0973/32 · May/June 2022 · Q5c(ii)[1]
The reaction between copper oxide and carbon is exothermic. State what is meant by exothermic.
See it on the paper → - 0973/31 · May/June 2021 · Q8d[1]
The combustion of methane is an exothermic reaction. State what is meant by exothermic.
See it on the paper → - 0973/32 · May/June 2021 · Q2b(ii)[1]
The reaction between magnesium and carbon dioxide is exothermic. Explain what is meant by an exothermic reaction.
See it on the paper → - 0973/42 · May/June 2021 · Q8e[1]
In one experiment the student measures the temperature of the acid before he adds the tablet. He also measures the temperature after all the tablet has reacted. The temperature decreases. State the name for this type of energy transfer.
See it on the paper → - 0973/31 · October/November 2020 · Q2a(i)[1]
The reaction releases thermal (heat) energy. State the term used to describe a chemical reaction that releases thermal energy.
See it on the paper → - 0973/41 · October/November 2020 · Q8a(ii)[1]
This reaction is an exothermic reaction. State the meaning of the word exothermic.
See it on the paper → - 0973/41 · May/June 2020 · Q8d(i)[1]
State the meaning of an exothermic reaction.
See it on the paper → - 0973/42 · May/June 2020 · Q11c(i)[1]
Explain why a temperature of 450 °C is used rather than a temperature of 800 °C. Do not include cost in your answer.
See it on the paper → - 0973/42 · May/June 2020 · Q11c(ii)[1]
Explain why a temperature of 450 °C is used rather than a temperature of 200 °C. Do not include cost in your answer.
See it on the paper → - 0973/41 · October/November 2019 · Q5b[2]
Calcium carbonate is heated to produce calcium oxide. The equation for this reaction is shown. CaCO 3 CaO + CO 2 Complete the following sentence using words from the list. Each word may be used once, more than once or not at all. chemical nuclear oxidation reduction thermal The reaction is endothermic because energy is...
See it on the paper → - 0973/42 · May/June 2019 · Q8b(ii)[1]
Use the diagram to explain why the reaction is exothermic.
See it on the paper →
What examiners said
Exothermic was correctly suggested by many candidates, with endothermic also being popular.
— Examiner report, May/June 2022, 0973/31 Q2(c)(iii) (Cambridge)
This question was very well answered with many candidates gaining credit. Some candidates needed to be more detailed in their responses not only referring to a decrease in chemical energy but also mentioning the chemical energy in the products or reactants.
— Examiner report, May/June 2019, 0973/42 Q8(b)(ii) (Cambridge)
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