Question

Which of the following will shift this equilibrium system to the left?

Energy + N2O4 (g) Two arrows stacked on top of each other. The top arrow points to the right. The bottom arrow points to the left. 2 NO2 (g)

Increasing the concentration of N2O4
Increasing the volume of the container
Decreasing the temperature of the system
Decreasing the concentration of NO2

Answer 1

@Photon336

Answer 2

ok

Answer 3

increasing the concentration of N2O4 would push the reaction to the right so I think that's out

Answer 4

so d is wrong also

Answer 5

Increasing the volume though would decrease the pressure and that means that the reaction is going to favor the side with the greater number of moles which is the product so that's out too.