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Question

The exothermic formation of ClF3 is represented by the equation: Cl2(g)+3F2(g)2ClF3(g),ΔH=329 kJ
Which of the following will increase the quantity of ClF3 in an equilibrium mixture of Cl2,F2 and ClF3?

A
Increasing the temperature
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B
Removing Cl2
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C
Increasing the volume of container
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D
Adding F2
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Solution

The correct option is B Adding F2
The equilibrium reaction is Cl2(g)+3F2(g)2ClF3(g)ΔH=329
When fluorine is added, more and more fluorine will react with chlorine to form more ClF3 and the equilibrium will shift towards right. This will increase the quantity of ClF3 in the equilibrium mixture.

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