Question

What stress would shift the equilibrium position of the following system to the left? N2O3(g) ⇌ NO(g) + NO2(g); ΔH is negativea.The forward reaction is exothermic.b.The backward reaction has a negative net enthalpy.c.The colorless gas has a higher enthalpy than the brown gas.d.The equilibrium between the two forms of the gas is disturbed at high temperatures.

Answer 1

Step-by-step explanation

N2O3(g) ⇌ NO(g) + NO2(g); ΔH is negative

The reaction is exothermic (ΔH is negative), an increase in the temperature will force the equilibrium to the left, causing the system to absorb heat and thus partially offset the rise in temperature.

Therefore, the correct answer is:

d. The equilibrium between the two forms of the gas is disturbed at high temperatures.