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Unformatted text preview: equation: 2HI(g) H 2 (g) + I 2 (g) K c = 0.0200 (at 745 K) Suppose that a mixture of 1.00 mol HI(g) and 1.00 mol H 2 (g) is sealed into a 10.0 L flask and heated to 745 K. What will be the concentrations of all three substances when equilibrium is achieved? 4) Consider an equilibrium mixture of nitrogen, hydrogen and ammonia: N 2 (g) + 3H 2 (g) 2NH 3 (g) H = 92.2 kJ at 25 C For each of the changes listed below, say whether the value of K c increases or decreases, and say whether more NH 3 , or less NH 3 is present at the new equilibrium that is established after the change. (a) More H 2 is added (at a constant temperature of 25 C and constant volume) (b) The temperature is increased. (c) The volume of the container is doubled (at constant temperature)....
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