Subsection 6.2. Rate of reaction for Chemistry, O Level - revisedeck

6.2. Rate of reaction

A subsection of Chemistry, 5070, through 6. Chemical reactions

Listing 10 of 90 questions

The energy profile diagrams show how adding a substance X to a reaction mixture changes the reaction pathway. reaction pathway energy reactants with X without X products Which change occurs when X is added to the reaction mixture?

5070_w06_qp_1

MCQ

2006

Paper 1, Variant 0

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Which industrial reaction does not involve a catalyst?

5070_w12_qp_11

MCQ

2012

Paper 1, Variant 1

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Why does an increase in pressure increase the rate of reaction between the gases nitrogen and hydrogen in the manufacture of ammonia?

5070_w12_qp_12

MCQ

2012

Paper 1, Variant 2

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What is the effect of a catalyst on the activation energy and on the enthalpy change, ∆H, of a reaction?

5070_w12_qp_12

MCQ

2012

Paper 1, Variant 2

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The equation shows the reaction for the manufacture of ammonia. N2+ 3H22NH3Which change will decrease the activation energy of the reaction?

5070_w14_qp_11

MCQ

2014

Paper 1, Variant 1

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A student investigates how the concentration of a reagent affects the rate of a chemical reaction. Which piece of apparatus is essential for all rate investigations?

5070_w16_qp_11

MCQ

2016

Paper 1, Variant 1

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Gold is used as a catalyst in some chemical reactions. In these reactions, gold • helps reduce the energy costs of the reaction. • increases the yield of the reaction. • is unchanged at the end of the reaction. • speeds up the rate of the reaction. How many of these statements are correct?

5070_w16_qp_11

MCQ

2016

Paper 1, Variant 1

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When calcium carbonate is added to dilute hydrochloric acid, carbon dioxide gas is released. Three sets of apparatus are shown...

5070_w16_qp_12

MCQ

2016

Paper 1, Variant 2

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A chemist investigated the rate of the reaction between ethene and hydrogen using a nickel catalyst. Ni C2H4+ H2C2H6The chemist carried out three experiments under different conditions. experiment number pressure / atmospheres particle size of catalyst powder 0.5 powder large pieces Which row is correct?

5070_w17_qp_11

MCQ

2017

Paper 1, Variant 1

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The equation shows the reaction for the manufacture of ammonia. N2+ 3H22NH3Which change will decrease the activation energy of the reaction?

5070_w18_qp_11

MCQ

2018

Paper 1, Variant 1

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Questions Discovered

90