C6H12O6(aq) + 6O2(g) 6CO2(g) + 6H2O(l) ΔH = –2802.7 kJ mol –1 a) Write an expression for the equilibrium constant for this reaction. b) At equilibrium, the concentration of the reactants and products are determined as [CO2] = 0.30 M, [O2] = 0.040 M and [C6H12O6] = 0.065 M. Determine the value of the equilibrium constant (Kc) and predict the whether the products or reactants will be favoured at equilibrium. c) Given that the concentrations of the reactants and products at a particular time are [CO2] = 0.65 M, [O2] = 0.020 M and [C6H12O6] = 0.055 M, determine the reaction quotient (Qc). Compare the Kc and Qc values and predict the favoured direction of the reaction. d) Explain the effect on equilibrium of: i) Increasing temperature ii) Increasing pressure iii) Decreasing the concentration of oxygen iv) Increasing the concentration of carbon dioxide v) Adding a catalyst
C6H12O6(aq) + 6O2(g) 6CO2(g) + 6H2O(l)
ΔH = –2802.7 kJ mol –1
a) Write an expression for the equilibrium constant for this reaction.
b) At equilibrium, the concentration of the reactants and products are determined as [CO2] = 0.30 M, [O2] = 0.040 M and [C6H12O6] = 0.065 M. Determine the value of the equilibrium constant (Kc) and predict the whether the products or reactants will be favoured at equilibrium.
c) Given that the concentrations of the reactants and products at a particular time are [CO2] = 0.65 M, [O2] = 0.020 M and [C6H12O6] = 0.055 M, determine the reaction quotient (Qc). Compare the Kc and Qc values and predict the favoured direction of the reaction.
d) Explain the effect on equilibrium of:
i) Increasing temperature
ii) Increasing pressure
iii) Decreasing the concentration of oxygen
iv) Increasing the concentration of carbon dioxide
v) Adding a catalyst
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