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Le Chatelier's Principle

Q. Consider the following system at equilibrium where ΔH° = 10.4 kJ, and Kc = 1.80x10^-2, at 698 K. 2HI(g) ⇌ H2(g) + I2(g) If the TEMPERATURE on the equilibrium system is suddenly increased: The reaction must: ____

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. Consider the following system at equilibrium where ΔH° = 16.1 kJ, and Kc = 154, at 298 K. 2NO (g) + Br2 (g) ⇌ 2NOBr (g) If the TEMPERATURE on the equilibrium system is suddenly increased: The reaction must: _____

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. Consider the following system at equilibrium where ΔH° = 10.4 kJ, and Kc = 1.80x10^-2, at 698 K. 2HI(g) ⇌ H2(g) + I2(g) If the TEMPERATURE on the equilibrium system is suddenly increased: The value of Kc a) Increases b) Decreases c) Remains the same

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. Consider the following system at equilibrium where ΔH° = 16.1 kJ, and Kc = 154, at 298 K. 2NO (g) + Br2 (g) ⇌ 2NOBr (g) If the TEMPERATURE on the equilibrium system is suddenly increased: The value of Kc A. Increases B. Decreases C. Remains the same

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. In an aqueous chloride solution cobalt (II) exists in equilibrium with the complex ion CoCl4^2-• Co^2+ (aq) is pink and CoCl4^2-(aq) is blue. If we represent the equilibrium as: CO^2+(aq) + 4Cl^-(aq) ⇌ CoCl4^2- (aq) We can conclude that: 3. When the temperature is increased the equilibrium concentration of Co^2+: A. Increases B. Decreases C. Remains the same

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. In an aqueous chloride solution cobalt (II) exists in equilibrium with the complex ion CoCl4^2-• Co^2+ (aq) is pink and CoCl4^2-(aq) is blue. If we represent the equilibrium as: CO^2+(aq) + 4Cl^-(aq) ⇌ CoCl4^2- (aq) We can conclude that: 3. When the temperature is increased the equilibrium concentration of CoCl4^2-: A. Increases B. Decreases C. Remains the same

Solved • Feb 19, 2020

Le Chatelier's Principle

Q. Dinitrogen tetraoxide and nitrogen dioxide are two gases that exist in equilibrium at a range of temperatures. NO2 is a reddish brown gas while N2O4 is colorless. If we represent the equilibrium as : N2O4(g) ⇌ 2 NO2(g) We conclude that : 3. When the temperature is decreased the equilibrium concentration of NO2: a) Increases b) decreases c) Remain the same d) More information is needed to answer this question

Solved • Feb 19, 2020