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The exothermic formation of ClF3 is represented by the equation: Cl2(g) + 3 F2(g) ⇌ 2ClF3(g); ΔrH = −329 kJ Which of the following will increase the quantity of ClF3 in an equilibrium mixture of Cl2, F2 and ClF3 ?
- Increasing the temperature
- Removing Cl2
- Increasing the volume of the container
- Adding F2
Correct answer: Increasing the temperature
Solution
Increasing the temperature shifts the equilibrium position of an exothermic reaction to the left, favoring the reactants and reducing the quantity of ClF3. Therefore, this option is incorrect as it would decrease the amount of ClF3.
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