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Edexcel A-Level Chemistry AS 9.9 Many Reactions Are Readily Reversible and That They Can Reach a State of Dynamic Equilibrium in Which I the Rate of Questions

Practise Edexcel IAL Chemistry 9.9 by defining dynamic equilibrium, reading reversible-reaction graphs and distinguishing equal rates from constant concentrations.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • define dynamic equilibrium as equal forward and backward rates with constant concentrations
  • interpret reversible-reaction graphs as concentrations or rates reach equilibrium

Edexcel A-Level Chemistry AS 9.9 Many Reactions Are Readily Reversible and That They Can Reach a State of Dynamic Equilibrium in Which I the Rate of Questions question 1

[Maximum number: 1]

Which statement is not true for a system at dynamic equilibrium?

A

the position of equilibrium is affected by temperature, by pressure and by catalysts

B

the concentration of reactants is constant

C

the forward and backward reactions occur at equal rates

D

the equilibrium can be reached from either direction

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