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ChemistryJAMB UTME

Options:

A.
B.
C.
D.
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Earlier discussion

3 older comments kept for context.

Oluwaseun Adeyemi

This reaction is exothermic because it has a negative \(\Delta\)H. If the temperature is increasing, a product is being added to the equilibrium, so the equilibrium shifts to minimize the addition of extra product: it shifts back toward reactants i.e. it shifts left. Increasing the temperature in an exothermic reaction decreases the value of the equilibrium constant. Where the forward reaction is endothermic, increasing the temperature increases the value of the equilibrium constant.

martins omoniyi

Totally misleading answer and explanation. The correct answer is A. This is because exothermic which is negative when the temperature increase it shift to left and the constant decrease check chemistry textbook for reference.

Oluwaseun Adeyemi

This is typical of what happens with any equilibrium where the forward reaction is exothermic. Increasing the temperature decreases the value of the equilibrium constant. Where the forward reaction is endothermic, increasing the temperature increases the value of the equilibrium constant. Endothermic reaction has a Positive Enthalpy change. Exothermic reaction has a negative enthalpy change.