Topic Dynamic equilibria Level GCSE and A Level Outcomes

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Topic Dynamic equilibria Level GCSE and A Level Outcomes Use a model to describe and explain what happens to (i) the rate of the forward and reverse reactions (ii) the concentration of reactants and products at dynamic equilibrium. www.thescienceteacher.co.uk | resources for science teachers who like to think

Time = 0.00 Alfie Otis Reactants = 10 Products = 0

Time = 1.00 Alfie Otis Reactants = 9 Products = 1

Time = 2.00 Alfie Otis Reactants = 9 Products = 1

Time = 3.00 Alfie Otis Reactants = 9 Products = 1

Time = 4.00 Alfie Otis Reactants = 9 Products = 1

Time = 5.00 Alfie Otis Reactants = 8 Products = 2

Time = 6.00 Alfie Otis Reactants = 8 Products = 2

Time = 7.00 Alfie Otis Reactants = 8 Products = 2

Time = 8.00 Alfie Otis Reactants = 7 Products = 3

Time = 9.00 Alfie Otis Reactants = 7 Products = 3

Time = 10.00 Alfie Otis Reactants = 7 Products = 3

Time = 11.00 Alfie Otis Reactants = 7 Products = 3

Time = 12.00 Alfie Otis Reactants = 7 Products = 3

Time = 13.00 Alfie Otis Reactants = 7 Products = 3

Time = 14.00 Alfie Otis Reactants = 7 Products = 3

Time = 15.00 Alfie Otis Reactants = 7 Products = 3

Time = 16.00 Alfie Otis Reactants = 7 Products = 3

Time = 17.00 Alfie Otis Reactants = 7 Products = 3

Time = 18.00 Alfie Otis Reactants = 7 Products = 3

Time = 19.00 Alfie Otis Reactants = 7 Products = 3

Time = 20.00 Alfie Otis Reactants = 7 Products = 3

Time = 21.00 Alfie Otis Reactants = 7 Products = 3

Alfie and Otis were having a snowball fight Alfie and Otis were having a snowball fight. Here are the number of snow balls on each side of the wall. Why did the results not change after 7s? Time (s) Alfie Otis 10 1 9 5 8 2 7 3 12 This model represents what happens in a chemical reaction at dynamic equilibrium. Can you use this model to describe and explain what happens to: The rate of the forward and reverse reactions The concentration of the reactants and products