We’re being asked to identify what would happen to the amount of ClI2(g) when we add more HCl(g) to the equilibrium:
2 HCl (g) + I2 (s) ⇌ 2 HI(g) + Cl2 (g)
According to Le Chatelier’s Principle, if a system (chemical reaction) is at equilibrium and we disturb it, then the system will readjust to maintain its equilibrium state.
Four substances (HCl, I 2, HI, and Cl 2) are mixed in a reaction vessel and allowed to reach equilibrium in the following reaction:
2 HCl (g) + I 2 (s) ⇋ 2 HI (g) + Cl 2 (g)
Certain change is then made to this mixture. Considering the change, select the effect (increase, decrease, or no change) that the change has on the original equilibrium value of the quantity. The temperature and volume are constant, unless otherwise specified. This reaction is exothermic. Please circle the letter of the correct answer.
Change: Add l 2 (g) Quantity: amount of Cl 2 (g) Effect:
c. no change
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