Multiple Choice
State which is greater in amount:reactants or products, based on the given equilibrium constant, K.
15. Chemical Equilibrium
The Equilibrium Constant
Back15. Chemical Equilibrium
The Equilibrium Constant
- Multiple Choice
The decomposition of nitrogen monoxide can be achieved under high temperatures to create the products of nitrogen and oxygen gas.
6 NO(aq) ⇌ 3 N2(aq) + 3 O2(aq)
a) What is the equilibrium equation for the reaction above?
b) What is the equilibrium expression for the reverse reaction.
- Multiple Choice
The equilibrium constant, K, for 2 NO (g) + O2 (g) ⇌ 2 NO2 (g) is 6.9 x 102.
What is the [NO] in an equilibrium mixture of gaseous NO, O2, and NO2 at 500 K that contains 1.5 x 10 –2 M O2 and 4.3 x 10 –3 M NO2?
- Open QuestionDo the following reactions favor reactants or products at equilibrium? Give relative concentrations at equilibrium.Fe2O3(s) + 3 CO(g) ⇌ 2 Fe(s) + 3 CO2(g) K (at 727 °C) = 24.2
- Open QuestionDo the following reactions favor reactants or products at equilibrium? Give relative concentrations at equilibrium.Sucrose(aq) + H2O(l) ⇌ Glucose(aq) + Fructose(aq) K = 1.4 x 10^5
- Open QuestionThe following diagrams represent two similar reactions that have achieved equilibrium: <.>Calculate the value for the equilibrium constant for each reaction.
- Open QuestionThe following diagrams represent two similar reactions that have achieved equilibrium: <.>Write the expression for the equilibrium constant for each reaction.
- Open QuestionWrite the equilibrium constant expressions for the following reactions:2 CO(g) + O2(g) ⇌ 2 CO2(g)
- Open QuestionWrite the equilibrium constant expressions for the following reactions.C(s) + H2O(g) ⇌ CO(g) + H2(g)
- Open QuestionUse your answer from Problem 7.53 to calculate the following:[N2O4] at equilibrium when [NO2] = 0.0250 mol/L
- Open QuestionUse your answer from Problem 7.54 to calculate the following:[O2] at equilibrium when [CO2] = 0.18 mol/L and [CO] = 0.0200 mol/L
- Open QuestionOxygen can be converted into ozone by the action of lightning or electric sparks: 3 O2(g) ⇌ 2 O3(g)For this reaction, ∆H = +69kcal/mol (+285 kj/mol) and K = 2.68 x 10^-29 at 25 °C.Are the reactants or the products favored at equilibrium?
- Open QuestionMagnetite, an iron ore with formula Fe3O4, can be reduced by treatment with hydrogen to yield iron metal and water vapor.This reaction haS K = 2.3 x 10^-18. Are the reactants or the products favored?
- Open QuestionAmmonia reacts slowly in air to produce nitrogen monoxide and water vapor: NH3(g) + O2(g) ⇌ NO(g) + H2O(g) + HeatWrite the equilibrium equation.