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a. (10 points) The equilibrium constant Kp for the following reaction is 6.2 x 10-5 at 100 K. 4 H2Se (g) ⇌ 4 H2 (g) + Se4 (g) If an equilibrium mixture contains 12.5 atm H2Se and 0.25 atm H2, what is the concentration of Se4 at equilibrium? b. (10 points) Consider the following equilibrium process: 2 H2O (l) ⇌ 2 H2 (g) + O2 (g) ∆H = 129.5 kJ Predict the direction of the shift in equilibrium when the following changes are made: The temperature is increased More hydrogen gas is added Some H2O is removed from the reaction mixture Oxygen gas is removed The pressure was increased
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