NEET 2012 Chemistry question

ChemistryEquilibriumNEET 2012

Given that the equilibrium constant for the reaction

2SO_{2(g)} + O_{2(g)} 2SO_{3(g)}

has a value of at a particular temperature. What is the value of the equilibrium constant for the following reaction at the same temperature.

SO_{3(g)} SO_{2(g)} + O_{2(g)}

Answer: (4)

Solution

Reversing a reaction inverts K: for , . Dividing the equation by 2 takes the square root of K: for $SO_3

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Question ID VK-090986