Equilibrium 0.0 / 5 ? ChemistryEquilibriaASAQA Created by: izzybook25Created on: 11-04-18 11:58 What is Le Chatelier's principle? If a system is subject to change, the equilibrium shifts to minimize the effects of the change 1 of 17 What happens to equilibrium when temperature is increased? Shifts to counteract the change 2 of 17 What happens to equilibrium when delta H is negative and temperature is increased? Shifts left 3 of 17 What happens to equilibrium when delta H is positive and temperature is increased? Shifts right 4 of 17 What happens to equilibrium when pressure is increased? Shift to counteract the change 5 of 17 Where does equilibrium shift when pressure is increased? Shifts to the side with the least moles of gas 6 of 17 What happens when we increase concentration? Adding more acid increases concentration of H+ ions 7 of 17 What happens to equilibrium when concentration is increased? Shift to counteract the effects of more H+ ions 8 of 17 In which direction does equilibrium shift when concentration is increased? Shifts in the opposite direction to where there was an increase in H+ ions 9 of 17 How does a catalyst effect equilibrium? Doesn't effect position 10 of 17 What effect does a catalyst have on a reaction? Causes equilibrium to be reached faster 11 of 17 What reversible reaction makes ammonia? Haber process 12 of 17 What is needed for the haber process? N2, H2, iron catalyst, 200 atmospheres, 673K 13 of 17 What reversible reaction makes ethanol? Hydration of ethene 14 of 17 What things are used to shift equilibrium right in ethanol reaction? High pressure, low temperature, excess steam, phosphoric acid catalyst 15 of 17 What does CO and H2 create in a reversible reaction? Methanol 16 of 17 What conditions are used to make methanol? Low temp, high pressure, copper catalyst 17 of 17
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