Consider the following equilibrium: A (aq) + B (aq) ⇌ C (aq) Under a given set of circumstances, Kc = 0.351 and Q = 2.335  Which of the following statements is true? Towards product or reactants?

At a certain temperature, Keq = 135.5 for the following equilibrium: SO2(g) + NO2(g) <===> NO(g) + SO3(g) Suppose a reaction vessel at this temperature contained these three gases at the following concentrations: [SO2] = 0.00250 M, [NO2] = 0.00350 M, [NO] = 0.0250 M, [SO3] = 0.0400 M.  a)Determine Qeq for the system. (b)Is the system at equilibrium? If it is not, indicate the direction toward which the system will move to reach equilibrium.

Ammonium carbamate (NH2COONH4) is a salt of carbamic acid that is found in the blood and urine of mammals. At 250. ° C, Kc = 1.58  ×  10−8 for the following equilibrium:    NH2COONH4(s) ⇌ 2 NH3(g) + CO2(g) If 2.70 g of NH2COONH4 is put into a 0.500−L evacuated container, what is the total pressure at equilibrium?

A mixture of 3 moles of NO and 4 moles of H2O is placed in a 5 L container and heated to 300 degrees C where the equilibrium 4NH3 (g) + 5O2 (g) ⇄ 4NO(g) + 6H2O(g) is established. At equilibrium, the NH3 , O2 , NO and H2O concentrations were 0.45, 0.5625, 0.15, and 0.125 moles/L, respectively. The volume of the container is then reduced from 5 L to 1 L. What is the equilibrium constant, Kc, after equilibrium is re-established at the reduced volume? a) 6.43x10-9 b) 1.20x106 c) 7.62x10-5 d) 3.94x108 e) 8.36x10-7

A chemical engineer is studying the following reaction: HCH;CO,(aq)+CH;NH,(aq) → CH;CO,(aq)+CH,NH,(aq) At the temperature the engineer picks, the equilibrium constant K, for this reaction is 0.73. The engineer charges ("fills") four reaction vessels with acetic acid and methylamine, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction compound concentration expected change in concentration vessel HCH;CO, 1.18 M f increase I decrease (no change) CH, NH, 0.97 M f increase OI decrease O (no change) A CH,CO, 0.39 M f increase O I decrease (no change) + CH,NH, 0.39 M f increase Ot decrease (no change) HCH,CO, 1.15 M f increase OI decrease O (no change) CH,NH, 0.88 M t increase I decrease (no change) В CH,CO, 0.86 M f increase OI decrease (no change) CH,NH,…

Water gas is a 1:1 mixture of carbon monoxide and hydrogen gas and is called water gas because it is formed from steam and hot carbon in the following reaction: H2 O(g) + C(s) ⇌ H2(g) + CO(g). Methanol, a liquid fuel that could possibly replace gasoline, can be prepared from water gas and hydrogen at high temperature and pressure in the presence of a suitable catalyst.(a) Write the expression for the equilibrium constant (Kc) for the reversible reaction2H2(g) + CO(g) ⇌ CH3 OH(g)                                ΔH = −90.2 kJ(b) What will happen to the concentrations of H2, CO, and CH3OH at equilibrium if more H2 is added?(c) What will happen to the concentrations of H2, CO, and CH3OH at equilibrium if CO is removed?(d) What will happen to the concentrations of H2, CO, and CH3OH at equilibrium if CH3OH is added?(e) What will happen to the concentrations of H2, CO, and CH3OH at equilibrium if the temperature of the system is increased?(f) What will happen to the concentrations of H2, CO,…

A chemical engineer is studying the following reaction: HCH;CO,(aq)+CH,NH,(aq) → CH;CO,(aq)+CH,NH,(2q) At the temperature the engineer picks, the equilibrium constant K, for this reaction is 1.6. The engineer charges ("fills") four reaction vessels with acetic acid and methylamine, and lets the reaction begin. She then measures the composition of the mixture inside each vessel from time to time. Her first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time she measures the compositions. reaction compound expected change in cor concentration concentration vessel HCH,CO, 0.96 M O T increase OI decrease O (no change) CH, NH, 0.88 M O f increase OI decrease O (no change) A CH,Co, 0.54 M O f increase OI decrease O (no change) CH,NH, 0.45 M O f increase OI decrease O (no change) HCH, CO, 0.88 M f increase OI decrease O (no change) CH,NH, 0.77 M O f increase OI decrease O (no change) B CH, Co, 1.09 M O increase OI…

6. Write the equilibrium constant expression for the following reactions. a. CHa (8) + 20; (B) → CO; (B) + 2H;0 (g) b. 4 NH3 (g) + 302 (g) → 2N2 (g) + 6H;0 (g) c. C (s) + 2H2 (g) CH4 (g)

Hydrogen is prepared commercially by the reaction of methane and water vapor at elevated temperatures. CH4(g)+H2O(g)⇌3H2(g)+CO(g) What is the equilibrium constant for the reaction if a mixture at equilibrium contains gases with the following concentrations: CH4, 0.126 M; H2O, 0.242 M; CO, 0.126 M; H2 1.15 M, at a temperature of 760. °C? Enter your answer with 3 sig figs.