Consider the reaction equilibrium 2SO_2(g) + O_2(g) 2SO_3(g); H^0 = -198 kJ. On the basis of Le Chatelier's principle, the condition favourable for the forward reaction is

JEE Main 2003 Chemistry question

Consider the reaction equilibrium ; kJ. On the basis of Le Chatelier's principle, the condition favourable for the forward reaction is

(1)increasing temperature as well as pressure
(2)lowering the temperature and increasing the pressureCorrect
(3)any value of temperature and pressure
(4)lowering of temperature as well as pressure

Answer: (2)

Solution

The forward reaction is exothermic (), so lowering the temperature favours it. It also decreases the number of gaseous moles (3 → 2), so increasing the pressure favours

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Question ID VK-038158