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In Course: GCSE Chemistry (AQA): Paper 2

AQA GCSE Chemistry: Rates of Reaction

Covers all AQA specification points on rates of reaction, including how to calculate them from graphs, the factors that affect them (concentration, pressure, temperature, surface area, catalysts), and how to explain these effects using collision theory. Includes the required practical on investigating the effect of concentration on reaction rate.

A dramatic, close-up photograph of an effervescent tablet rapidly dissolving in a clear glass of water, filling the wide frame with a vigorous explosion of countless tiny bubbles and swirling currents. Intense backlighting catches the dynamic motion and the energetic release of gas, illustrating the concept of a fast reaction rate.

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Deck Contents

52 Cards
Lesson#1
Welcome to this deck on the rates of chemical reactions. We'll explore what the rate of reaction means, how to measure it, and how to calculate it from experimental data and graphs. We will also cover the key factors that can change the speed of a reaction, and explain these effects using a powerful idea called collision theory. Finally, we'll walk through the required practical for this topic. Mastering this is key for your GCSE Chemistry exam.
Quiz#2
What is the rate of a chemical reaction a measure of?

How fast reactants are used up

Quiz#3
Besides how fast reactants are used up, what is the other way to measure the rate of a chemical reaction?

How fast products are formed

Lesson#4
To calculate the rate of a reaction, you need to know two things: the amount of a reactant used up or product formed, and the time it took. The equation is simple: the mean rate of reaction equals the amount of reactant used, or product formed, divided by the time. For example, if you collect 10 cubic centimetres of a gas in 20 seconds, the rate is 10 divided by 20, which is 0.5 cubic centimetres per second.
Quiz#5
What is the general equation used to calculate the mean rate of a reaction?

amount divided by time

Quiz#6
If the amount of product is measured in grams and time in seconds, what are the units for the rate of reaction?

grams per second

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