Question

CHEM 212 Practice Sheet la) Sketch an energy diagram for a chemical reaction that is exothermic (AH--200 kJ/mol. The reaction is single-step and has an activation energy of 100 kJ/mol. 1b) Now, draw an energy diagram for the same chemical reaction upon addition of a catalyst. 2) At 1000 K, K, -1.85 for the reaction SO, (g) + 0(8) SO, (g) a) Write an expression for the equilibrium constant, K b) What is the value of K, for the reaction SO, (g) → SO, ()+%40, (8) c) What is the value of K, for the reaction 2 SO: (g) + O2(g) → 2 SO, () d) If the equilibrium is disturbed by increasing the pressure of so, how will the equilibrium shift to achieve a new equilibrium position? e) The reaction is endothermic. If the reaction vessel is cooled, how will the equilibrium shift to reach a new state of equilibrium? If the equilibrium is disturbed by reducing the pressure of os, how will the pressure of SO, change as equilibrium is reestablished? 3) For the reaction, A+2B 2C+D, the equilibrium partial pressures are: A-0.7 atm, B-1.6 atm, C -0.4 atm, and D -0.15 atm. Calculate K 4) Explain the concept of equilibrium in your own words 5) Explain LeChatelier's Principle in your own words.

Answer 1

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