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AQA GCSE Chemistry Rates and equilibrium

Rates and equilibrium

This page covers the following topics:

1. Rate of reaction

The rate of a chemical reaction can be increased by increasing temperature, increasing reactant concentration, increasing the surface area of solid reactants or the use of catalysts. There are a number of ways we can determine the rate of reaction experimentally.

Rate of reaction

1

What are the units of the rate of reaction when COβ‚‚ gas is released over 30 seconds?

What are the units of the rate of reaction when COβ‚‚ gas is released over 30 seconds?

2

With reference to the table, what is the rate of reaction between 60 and 120 seconds?

With reference to the table, what is the rate of reaction between 60 and 120 seconds?

3

HCl was added to sodium thiosulfate solution in a conical flask, the resulting solution going from transparent to opaque after 64 seconds. What is the rate of the reaction?

HCl was added to sodium thiosulfate solution in a conical flask, the resulting solution going from transparent to opaque after 64 seconds. What is the rate of the reaction?

4

What does the gradient represent on a graph of total mass of product produced vs time from start of reaction?

What does the gradient represent on a graph of total mass of product produced vs time from start of reaction?

5

What is a catalyst?

What is a catalyst?

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