12. Consider the following equilibrium at 25°C: Which of the following would be

Question

12. Consider the following equilibrium at 25°C: Which of the following would be true if the temperature were increased to 100°C? 1. The value of Kp would increase. 2. The concentration of ICI(g) would increase. 3. The partial pressure of I2 would increase. a. 1 only b. 3 only c. 1 and 3 only d 2 only e. 1 and 2 only 13. One method for the decomposition of carbon dioxide proceeds as follows: 2COKg)-2CO(g) + O2(g); 11-559 kJ Which of the following changes will cause an increase in the equilibrium concentration of CO? a. adding more O2 to the system b. adding a catalyst c. removing CO: from the system d. increasing the pressure of the system at constant temperature e. increasing the temperature of the systenm

Explanation / Answer

12. According to Lechatlier's principle increase in temperature favours endothermic reaction.

In the given equilibrium forward reaction is endothermic and hence is favoured on increasing temperature.

So,

(c) 1 and 3 only

13.

(e) Increasing the temperature will increase the concentraion of CO, as the forward reaction is endothermic.

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