reversible reactions 4.0 / 5 based on 1 rating ? Chemistryreversible reactionsIGCSEEdexcel Created by: PablosCreated on: 13-04-18 14:20 Give I example of a reversible reaction? Heating copper(II) sulfate cyrstals and turns from blue cyrstals to white powder 1 of 12 Give another example of reversible reaction? Heating ammonium chloride to form ammonia gas and Hcl 2 of 12 What does reversible reactions under closed conditons mean? No substance are added to reaction mixture and no subsa=tances escape from it. But heat may be either given off or absorbed. 3 of 12 What is dynamic equilbrium the reactions are still continuing and the total amounts of the various things present are now constant. 4 of 12 What is position of equilibrium? A reference to the proportions of the various things in the equilibrium mixture. 5 of 12 What is Le Chatelier's principle? If a dynamic equilibrium is disturbed by changing the conditions, the reaction moves to counteract the chnage. 6 of 12 Things to try to influence the reaction? Increasing/decreasing the concentrations of substances present. Changing pressure, temp, Adding a catalyst 7 of 12 Which factor has no effect on position of equilibrium? A catalyst 8 of 12 What is the Haber process Takes nitrogen from the air and hydrogen produced from natural gas and combines them into ammonia 9 of 12 What is the chemical equation for the process N2(g)+3H2(g)=2NH3(g) 10 of 12 what raw materials are needed for the process? Nitrogen from the air and Hydrogen made from natural gas 11 of 12 What 4 conditons are needed for Haber process to work? 1 vol of N2 to 3 vol of H2, 450 degrees, 200 atmostpheres, iron catalyst 12 of 12
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