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In: Chemistry

13. A reaction has K = 10 at 25 °C and has a standard enthalpy of...

13. A reaction has K = 10 at 25 °C and has a standard enthalpy of reaction, ΔHorxn =-100 kJ/mol. What is

the equilibrium constant at 100 °C? Does this make sense in terms of Le Châtlier’s Principle?

14. Consider the following reaction:

COCl2 (g) ⇌ CO (g) + Cl2 (g) K = 8.3 x 10-4 at 360 °C; ΔHorxn = 109.5 kJ/mol

a) Initially, 2.0 moles of CoCl2 were placed in an empty 1.0 L container at 360 °C. When the

system reached equilibrium, what was the equilibrium concentration of Cl2?

b) After the system reached equilibrium, 0.5 mol of CO were added into the container and the

temperature was increased to 500 °C. When the system re-established equilibrium, what

was the concentration of Cl2?

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