Chemistry A-Level
pressure and moles of gas
What pressure and moles of gas means in Chemistry A-Level, as defined for AQA.
Definition of pressure and moles of gas
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Reference: AQA
Raising the pressure shifts the equilibrium towards the side with fewer moles of gas; if both sides have the same number, pressure has no effect.
Topics that use pressure and moles of gas
- Chemical equilibria and Le Chatelier's principle (AQA A-Level)
Related terms
- closed system
- compromise pressure
- compromise temperature
- constant concentrations
- dynamic equilibrium
- equal effect on both directions
- equal forward and reverse rates
- Equilibrium constant Kc
Using pressure and moles of gas in the exam
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