In: Chemistry
12. Predict the direction of the equilibrium shift when temperature is decreased in the following reactions:
a. C2H2 (g) + H2O (g) ? CH3CHO (g) [?H = -151 kJ/mol]
b. CH3CH2OH (l) + O2 (g) ? CH3CH2O (g) + H2O (g) [?H = exothermic]
c. 2 CH3CHO (g) ? 2 C2H4 (g) + O2 (g) [?H = endothermic]
13. Consider the following endothermic reaction for the production of hydrogen gas in a rigid container:
CH4(g) + H2O(g) ? CO(g) + 3 H2(g)
How will the yield of hydrogen change if the equilibrium is disturbed by:
a. Adding a catalyst.
b. Increasing the pressure.
c. Decreasing the temperature.
d. Adding inert argon gas.
e. Increasing the temperature.