2 mol PCl 5 , 1 mol Cl 2 and 1 mol PCl 3 are taken in 1 L flask. When equilibrium is set up, PCl 5 is found to be 50% dissociated into the products. Hence K c is :

Question

2 mol PCl 5 ​ , 1 mol Cl 2 ​ and 1 mol PCl 3 ​ are taken in 1 L flask. When equilibrium is set up, PCl 5 ​ is found to be 50% dissociated into the products. Hence K c ​ is :

TestHub · Accepted Answer

For the reaction: PC l 5 ​ ⇌ PC l 3 ​ + C l 2 ​ Initial moles: 2 1 1 At equilibrium: 2 − x ( 1 + x ) ( 1 + x ) x = 100 2 × 50 ​ = 1 ,Hence K c ​ = 4 m o l L − 1

Chemistry - Chemical Equilibrium Question with Solution | TestHub

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