# Problem: The reaction      2 NO2(g) ⇌ N2O4(g)is exothermic. This means that:A. Kc will not change if the temperature is increasedB. Kc will be negativeC. Kc will decrease as the temperature is increasedD. The forward reaction is more sensitive to temperature than the reverse reactionE. None of the above

###### FREE Expert Solution

We’re being asked to identify the correct statement for the given reaction:

2 NO2(g)  N2O4(g)          Exothermic

According to Le Chatelier’s Principle, if a system (chemical reaction) is at equilibrium and we disturb it, then the system will readjust to maintain its equilibrium state.

Since the reaction is exothermic, this means that ΔH = (–), heat is given off as a product:

2 NO2(g)  N2O4(g) + heat

The Kc expression for this reaction is:

###### Problem Details

The reaction      2 NO2(g) ⇌ N2O4(g)
is exothermic. This means that:

A. Kc will not change if the temperature is increased

B. Kc will be negative

C. Kc will decrease as the temperature is increased

D. The forward reaction is more sensitive to temperature than the reverse reaction

E. None of the above