Consider these three reactions and equilibrium constants. Assume all components are gases. 1. C2 + 20 K1 = 100 %3D 2. 2D + D2 K2 = 0.001 %3D 3. 2C2 + 2D +→ 4C + D2 K3 =? What is the value for K3 for reaction 3? O 100,000 10 O 100 O 100.001 O 0.1

Consider these three reactions and equilibrium constants. Assume all components are gases. 1. C2 + 20 K1 = 100 %3D 2. 2D + D2 K2 = 0.001 %3D 3. 2C2 + 2D +→ 4C + D2 K3 =? What is the value for K3 for reaction 3? O 100,000 10 O 100 O 100.001 O 0.1

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Consider the following chemical equilibrium: N₂ (g) + 3H₂(g) 2NH3(g) с Now write an equation below that shows how to calculate K from K for this reaction at an absolute temperature T. You can assume T is comfortably above room temperature. If you include any common physical constants in your equation be sure you use their standard symbols, found in the ALEKS Calculator. K₁ = 0 P 00 X 5 010
Consider the equilibrium system described by the chemical reaction below, which has a value of Kc equal to 1.2×10-4 at a certain temperature. If a solid sample of NH4SH decomposes, what is the equilibrium concentration of NH3 be?
Consider the following reaction at equilibrium:2SO2(g) + O2 (g) <==> 2SO3(g)Determine if the following changes will increase, decrease or not affect the partial pressure of SO2.a. Decreasing the amount of oxygen in the systemb. Decreasing the volume of the systemc. Decreasing the temperature of the systemd. Decreasing the pressure of the systeme. Adding a catalyst to the reaction system
Consider the following equilibrium system: 2SO2 + O2 --> 2SO3 Into a 2.00 Liter container, 0.500 mol of SO3, was placed and heated to 300°C. After equilibrium was established, the container was found to have 0.300 moles of SO3 present along with the other gases. Calculate the equilibrium concentration of each molecule and the equilibrium constant for this reaction at this temperature.
Consider the following chemical equilibrium: N₂ (g) + 3H₂(g) 2NH₂(g) с Now write an equation below that shows how to calculate K from K for this reaction at an absolute temperature T. You can assume T is comfortably above room temperature. If you include any common physical constants in your equation be sure you use their standard symbols, found in the ALEKS Calculator. K₁₂ = P 00 X Ś 010
Consider the following reaction at equilibrium. Which of the following changes will shift the equilibrium to the left? CH4(g) + Cl2(g) ⇌ CCl4(l) + HCl(g) ΔH°= –398 kJ I. Increasing the temperature II. Decreasing the temperature III. Increasing the volume IV. Decreasing the volume V. Removing some Cl2 VI. Adding some Cl2 VII. Removing some HCl VIII. Adding some HCl A. I, IV, VI, VII B. II, III, VI, VIII C. I, VI, VIII D. I, III, V, VIII E. II, IV, VI, VII
Consider the following reaction: 2NH3(g) N₂(g) + 3H₂(g) If 1.54x10-3 moles of NH3(g), 0.549 moles of N₂, and 0.352 moles of H₂ are at equilibrium in a 19.7 L container at 792 K, the value of the equilibrium constant, K, is
Consider the following reaction and its equilibrium constant at some temperature. 2NH3(g) = N₂(g) + 3H₂(g) K₂=35 If the following concentrations are present initially: [NH3] = 0.10 M; [N₂] = 2.00 M; [H₂) = 2.00 M.. Which of the following is correct about the reaction? 1.The reaction is at equilibrium. 2.The reaction is not at equilibrium, it will shift to the left to reach equilibrium. 3.the reaction is not at equilibrium it will shift to the right to reach equilibrium.
6. Hydrogen gas is finding more acceptance as an alternative fuel. It is produced along with carbon dioxide by the reaction of carbon monoxide and gaseous water at 915 K. At this temperature, the equilibrium constant (K.) is 1.56. If this reaction is started in a 4.00 L closed system flask with 0.450 mol of CO, 1.25 mol H2O, 1.15 mol CO2, and 3.50 mol H2, calculate the concentrations of all substances in the flask initially and at equilibrium. Put these values in the ICE table below. (Hint: you will need to use the quadratic formula.) CO Н20 CO2 H2 INITIAL CHANGE EQUILIBRIUM 0.1125 0.3125 0.2875 0.875 -X -X +X +x e these values in the table. d. Calculate the reaction quotient, Q. e. Express the direction of equilibrium shift as an algebraic expression. Complete the change row of the table. f. Substitute the algebraic expressions into the equilibrium expression and solve for the equilibrium concentrations. Place these values in the table.
NA van wwwwwwww 1. For the reaction, 2 NO (g) + 2 H₂ (g) = following equilibrium concentrations: [NO]= 8.1 x 10-³ M [N2] = 0.053 M N₂ (g) + 2 H₂O (g), calculate Keq given the [H₂] = 4.1 x 10-5 M [H₂O]= 2.9 x 10-³ M 2. Given the reaction, UO2 (g) + 4 HF (g) = UF4 (g) + 2 H₂O (g), predict the effect each of the following will have on the equilibrium of the reaction (shift to the reactant side, the product side, or no shift). a. Uranium dioxide (UO2) is added. c. Water vapor is removed. b. Hydrogen fluoride (HF) reacts with the walls of the reaction vessel. - 3. At a certain temperature, Keq = 150 for the reaction being studied in today's lab. Use Equation (3) to calculate the concentrations of Fe³+ and SCN in a solution that has an equilibrium FeSCN2+ concentration of 4.5 x 105 M. Assume the equilibrium concentrations of Fe³+ and SCN are equal.
Write the equilibrium expression for 2NO(g) + 2H2(g) = N2(g) + 2H20(g). a. Ke = [H20]2 [N2] / [NO]² [H2]² O b. Kc [N2]/ [NO]2 [H2]? %3D O c. Ke [NO]? [H2]? / [H2O]² [N2] %3D