Section 5. Chemical energetics for Chemistry, IGCSE - revisedeck

5. Chemical energetics

A section of Chemistry, 0620

Listing 10 of 192 questions

Which statement about reactions that produce heat is not correct?

0620_m16_qp_12

MCQ

2016

Paper 1, Variant 2

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Ammonium chloride is added to 100 cm3 of water. The temperature changes from 25 °C to 20 °C. Which type of reaction occurs?

0620_m17_qp_12

MCQ

2017

Paper 1, Variant 2

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A diagram for the energy change during an exothermic reaction is shown...

0620_m17_qp_12

MCQ

2017

Paper 1, Variant 2

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A student carried out two experiments. experiment 1 The student heated a sample of limestone very strongly. A white powder formed. experiment 2 The white powder from experiment 1 was cooled. The student then added a small quantity of cold water to the powder. Large quantities of steam were produced. Which statement is not correct?

0620_m17_qp_12

MCQ

2017

Paper 1, Variant 2

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10 g of ammonium nitrate is added to water at 25 °C and the mixture stirred. The ammonium nitrate dissolves and, after one minute, the temperature of the solution is 10 °C. Which word describes this change?

0620_m19_qp_12

MCQ

2019

Paper 1, Variant 2

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10 g of ammonium nitrate is added to water at 25 °C and the mixture stirred. The ammonium nitrate dissolves and, after one minute, the temperature of the solution is 10 °C. Which word describes this change?

0620_m19_qp_22

MCQ

2019

Paper 2, Variant 2

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Hydrogen reacts with chlorine according to the following equation. H2+ Cl 2→ 2HCl The reaction is exothermic. Which statement about this reaction is correct?

0620_m19_qp_22

MCQ

2019

Paper 2, Variant 2

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Which row describes an endothermic reaction?

0620_m21_qp_12

MCQ

2021

Paper 1, Variant 2

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Which row describes an endothermic reaction?

0620_m21_qp_22

MCQ

2021

Paper 2, Variant 2

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Which change of state is an exothermic process?

0620_m22_qp_12

MCQ

2022

Paper 1, Variant 2

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Questions Discovered

192