PCl 5 , PCl 3 and Cl 2 are at equilibrium at 500K and having concentration 1·59M PCl 3 , 1·59M Cl 2 and 1·41 M PCl 5 . Calculate K c for the reaction: - Wired Faculty

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PCl₅, PCl₃ and Cl₂ are at equilibrium at 500K and having concentration 1·59M PCl₃, 1·59M Cl₂ and 1·41 M PCl₅. Calculate K_c for the reaction:
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Solution

Applying the law of chemical equilibrium, we have

straight K subscript straight c space equals space fraction numerator open square brackets PCl subscript 3 close square brackets space open square brackets Cl subscript 2 close square brackets over denominator open square brackets PCl subscript 5 close square brackets end fraction space space space space space space space space... left parenthesis 1 right parenthesis

Putting the values in expression (1), we have

straight K subscript straight c space equals space fraction numerator 1.59 space cross times space 1.59 over denominator 1.41 end fraction space equals space 1.79

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Equilibrium

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