6.3.6

Factors Affecting Equilibria - Pressure

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Pressure and the Position of Equilibrium

Pressure changes only affect reactions involving gases. To predict what happens after a change in pressure, we must look at balanced equations to see how many gas molecules are on each side of the equation.

Illustrative background for Increase pressureIllustrative background for Increase pressure ?? "content

Increase pressure

  • The position of equilibrium will shift to favour the reaction that produces the fewest gas molecules.
Illustrative background for Decrease pressureIllustrative background for Decrease pressure ?? "content

Decrease pressure

  • The position of equilibrium will shift towards the side of the reaction that produces the most gas molecules.

Jump to other topics

1States of Matter

2Atoms, Elements & Compounds

3Stoichometry

4Electrochemistry

5Chemical Energetics

6Chemical Reactions

7Acids, Bases & Salts

8The Periodic Table

9Metals

10Chemistry of the Environment

11Organic Chemistry

11.1Formulae, Functional Groups & Terminology

11.2Naming Organic Compounds

11.3Fuels

11.4Alkanes

11.5Alkenes

11.6Alcohols

11.7Carboxylic Acids

11.8Polymers

12Experimental Techniques & Chemical Analysis

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