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190 solutions

Le Chatelier's Principle

Q. Consider the reaction Cl2(g) <=> 2 Cl(g), which is endothermic as written. What would be the effect on the equilibrium position of adding Cl(g)?

Solved • Feb 14, 2020

Le Chatelier's Principle

Q. Consider the reaction H2(g) + Cl2(g) <=> 2 HCl(g), which is exothermic as written. What would be the effect on the equilibrium position of decreasing the temperature?

Solved • Feb 14, 2020

Le Chatelier's Principle

Q. Consider the following reaction: 4NH3(g) + 5O2(g) ⇌ 4NO(g) + 6H2O(g) ΔH = -904.4 kJ How does each of the following changes affect the yield of NO at equilibrium? Drag the appropriate items to their respective bins.

Solved • Feb 14, 2020

Le Chatelier's Principle

Q. Hydrogen chloride and oxygen react to form water and chlorine, like this: 4HCl(g) + O2(g) → 2H2O(g) + 2Cl2(g) Suppose a mixture of HCl, O2, H2O and Cl2 has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.

Solved • Feb 18, 2020

Le Chatelier's Principle

Q. Acetic acid and ethanol react to form ethyl acetate and water, like this: HCH3CO2(aq) + C2H5OH(aq) → C2H5CO2CH3(aq) + H2O(l) Imagine 173. mmol of C2H5CO2CH3 are removed from a flask containing a mixture of HCH3CO2, C2H5OH, C2H5CO2CH3 and H2O at equilibrium, then answer the following questions. What is the rate of the reverse reaction just after the C2H5CO2CH3 has been removed from the flask?

Solved • Feb 18, 2020

Le Chatelier's Principle

Q. Hydrogen chloride and oxygen react to form water and chlorine, like this: 4HCl(g) + O2(g) → 2H2O(g) + 2Cl2(g) Suppose a mixture of HCl, O2, H2O and Cl2 has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.

Solved • Feb 18, 2020

Le Chatelier's Principle

Q. Nitrogen monoxide and water react to form ammonia and oxygen, like this: 4NO(g) + 6H2O(g) → 4NH3(g) + 5O2(g) The reaction is endothermic. Suppose a mixture of NO, H2O, NH3 and O2 has come to equilibrium in a closed reaction vessel. Predict what change, if any, perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left.

Solved • Feb 18, 2020