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Question:

Which of the following according to Le-Chatelier's principle is correct?

Increase in temperature favours the exothermic reaction

Increase in temperature favours the endothermic reaction

All of the above are true

Increase in pressure shifts the equilibrium in that side in which number of gaseous moles increases

Solution:

According to Le-Chatelier's principle increase in temperature favours the endothermic reaction while a decrease in temperature favours the exothermic reaction. Increase in pressure shifts the equilibrium in that side in which the number of moles of gaseous species decreases.