# Problem: For the exothermic reaction 4 NH3(g) + 7 O2(g) =&gt; 4 NO2(g) + 6 H2O(g) which change will increase the quantity of NO2 in the mixture?a. decreasing container volumeb. removing some NH3(g)c. increasing the temperatured. removing some O2(g)e. adding some H2O(g)

###### FREE Expert Solution

We’re being asked to identify which change will increase the quantity of NO2 in the mixture for the exothermic reaction:

4 NH3(g) + 7 O2(g) 4 NO2(g) + 6 H2O(g)

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, ΔH = (–), heat is given off as a product:

4 NH3(g) + 7 O2(g) ⇌ 4 NO2(g) + 6 H2O(g) + heat

Now, let’s look at each given statement. ###### Problem Details

For the exothermic reaction 4 NH3(g) + 7 O2(g) => 4 NO2(g) + 6 H2O(g) which change will increase the quantity of NO2 in the mixture?

a. decreasing container volume
b. removing some NH3(g)
c. increasing the temperature
d. removing some O2(g)