Section 8. Reaction kinetics for Chemistry, A Level - revisedeck

Consider supporting us on Patreon. Help us keep revisedeck free.

8. Reaction kinetics

A section of Chemistry, 9701

Listing 10 of 220 questions

The diagram shows the Boltzmann distribution of energies for a reactant gas. For a particular reaction, the activation energy is X. energy, E number of particles with energy, E X Which change to the diagram occurs if an effective catalyst is added at the same temperature?

9701_w21_qp_11

MCQ

2021

Paper 1, Variant 1

View

The Boltzmann distribution diagram shows a fixed amount of a gas at two different temperatures, T1 and T2. T1 T2 activation energy molecular energy, E number of particles with energy, E Which statements correctly describe the features of this diagram?

9701_w21_qp_12

MCQ

2021

Paper 1, Variant 2

View

The diagram shows the Boltzmann distribution of energies for a reactant gas. For a particular reaction, the activation energy is X. energy, E number of particles with energy, E X Which change to the diagram occurs if an effective catalyst is added at the same temperature?

9701_w21_qp_13

MCQ

2021

Paper 1, Variant 3

View

Measurements are made to determine the activation energy, Ea, of a reaction. The diagram shows Ea on the Boltzmann distribution at temperature T1. number of molecules Ea energy Measurements are then made at a higher temperature, T2. Which diagram correctly shows the Boltzmann distribution and Ea at T2?

9701_w22_qp_11

MCQ

2022

Paper 1, Variant 1

View

Hydrogen peroxide decomposes slowly at 20 C to form water and oxygen. 2H2O2 2H2O + O2 equilibrium constant = Kc The reaction is faster when a catalyst is present. Which statement is correct?

9701_w22_qp_12

MCQ

2022

Paper 1, Variant 2

View

Measurements are made to determine the activation energy, Ea, of a reaction. The diagram shows Ea on the Boltzmann distribution at temperature T1. number of molecules Ea energy Measurements are then made at a higher temperature, T2. Which diagram correctly shows the Boltzmann distribution and Ea at T2?

9701_w22_qp_13

MCQ

2022

Paper 1, Variant 3

View

The forward reaction of a reversible reaction is exothermic and has an activation energy of +30kJmol–1. The reverse reaction proceeds by a mechanism that is the exact reverse of the mechanism of the forward reaction. Which statement about the activation energy of the reverse reaction is correct?

9701_w23_qp_11

MCQ

2023

Paper 1, Variant 1

View

The forward reaction of a reversible reaction is exothermic and has an activation energy of +30kJmol–1. The reverse reaction proceeds by a mechanism that is the exact reverse of the mechanism of the forward reaction. Which statement about the activation energy of the reverse reaction is correct?

9701_w23_qp_13

MCQ

2023

Paper 1, Variant 3

View

The diagram shows a Boltzmann distribution curve. The axes are not labelled. point Y point X EA Points X and Y are points on the vertical axis. What is represented by both points X and Y?

9701_w24_qp_11

MCQ

2024

Paper 1, Variant 1

View

The Boltzmann distribution for a mixture of gases capable of reaction is shown...

9701_w24_qp_12

MCQ

2024

Paper 1, Variant 2

View

Questions Discovered

220