Equilibrium 4.0 / 5 based on 1 rating ? ChemistryScottish Advanced HighersSQA Created by: Becca PCreated on: 01-04-13 13:35 What is equilibrium rate of forward reaction equals rate of backward reaction 1 of 21 concentrations at equilibrium reactants and products are constant 2 of 21 temperature increase favours endothermic 3 of 21 temperature decrease favours exothermic 4 of 21 increase in pressure favours least moles of gas 5 of 21 decrease in pressure favours most moles of gas 6 of 21 increase in concentration of reactants favours products 7 of 21 decrease in concentration of reactants favours reactants 8 of 21 catalyst effect on equilibrium position no effect 9 of 21 what is the equilibrium constant ratio of conc of products divided by conc of reactants 10 of 21 units of K no units 11 of 21 K<10-3 no reaction 12 of 21 10-3<K<10+3 large quantities of products and reactants 13 of 21 K>10+3 reaction is complete 14 of 21 homogeneous equilibria reactants and products are the same state 15 of 21 heterogeneous equilibria reactant and products are different states 16 of 21 what affects the value of K temperature 17 of 21 increase in temp for endothermic what happens to K? K increases 18 of 21 increase in temp for exothermic what happens to K? K decreases 19 of 21 why must a vessel be closed at equilibrium so no gases can escape and affect position of equilibria 20 of 21 how to calculate K for reverse reaction take inverse of K for forward reaction 21 of 21
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