The following questions refer to the equilibrium shown here: 4NH 3 (g)+ 5O 2 (g) 4NO(g)+ 6H 2 O(g)
-What would happen to the system if the pressure were decreased?

Question

The following questions refer to the equilibrium shown here: 4NH 3 (g)+ 5O 2 (g)  4NO(g)+ 6H 2 O(g)
-What would happen to the system if the pressure were decreased?

Quizplus · Accepted Answer

According to Le Chatelier's principle, when the pressure of a system is decreased, the equilibrium will shift in the direction that produces more moles of gas. In this case, the forward reaction produces 10 moles of gas (4 moles of NO and 6 moles of H2O vapor), while the reverse reaction only produces 6 moles of gas (5 moles of O2 and 1 mole of NH3). Therefore, if the pressure is decreased, the equilibrium will shift towards the side with more moles of gas, which is the forward reaction, resulting in an increase in the concentration of NO.

The Following Questions Refer to the Equilibrium Shown Here: 4NH3(g)

The Following Questions Refer to the Equilibrium Shown Here: 4NH₃(g)