Aqa chemistry a2 nelson thornes answers
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The ratio of reactant to C2F4 is 2 : 1 so this means 0. It is the reciprocal of you part iv answer. . One mark is given for the correct units. Endothermic 3 If this trend is wrong then there are no more marks for you in part ii. Increase higher pressure gives lower yield; the equilibrium shifts to reduce p or equilibrium favours side with fewer moles of gas 3 If this trend is wrong then there are no more marks for you in part i. One mark given for the correct units.

One mark for each step in the calculation, full marks are given for the correct answer. Only temperature affects the value of Kc 2 Look at the equation to get the ratio. One mark is given for the correct rearranged equation. . . .

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