Chemical Equilibria 0.0 / 5 ? ChemistryEquilibriaA2/A-levelEdexcel Created by: sheshabheeCreated on: 21-10-13 21:25 Q: Why does Kc have no units in expression 3? A: There are the same number of moles on both sides of the equation, so the volumes cancel. 1 of 5 Q: Suggest why the reaction mixture was cooled rapidly? A: To stop the reaction so that the equilibrium concentrations do not change 2 of 5 Q: What role does a catalyst have on the equilibrium reaction? A: A catalyst increases the rate at which equilibrium is reached 3 of 5 Q: State and explain 2 benefits to the environment from the use of catalysts? A: Less fuels is needed, Less raw materials are needed, Less natural resources are used because the reaction has a lower activation energy. 4 of 5 Q: A: 5 of 5
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