Consider the reaction: NO2(g) + CO(g) ⇌ NO(g) + CO2(g) Kc = 0.30 at some temperature....
Consider the reaction: NO2(g) + CO(g) ⇌ NO(g) + CO2(g)
Kc = 0.30 at some temperature.
If the initial mixture has the concentrations below, the system is_______.
Chemicals and Concentration (mol/L)
- NO2 0.024
- CO 0.360
- NO 0.180
- CO2 0.120
possible answers
1) not at equilibrium and will remain in an unequilibrated state.
2) not at equilibrium and will shift to the left to achieve an equilibrium state.
3) not at equilibrium and will shift to the right to achieve an equilibrium state.
4) at equilibrium
Homework Answers
Correct answer is : (2) not at equilibrium and will shift to the left to achieve an equilibrium state.
Explanation
Reaction quotient, Q = [NO][CO2] / [NO2][CO]
Q = [(0.180 M) * (0.120 M)] / [(0.024 M) * (0.360 M)]
Q = 2.5
Since Q > Kc, therefore, reaction will shift backwards (towards the reactants) to achieve equilibrium.
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