Combining Reactions and Equilibrium Constants Given: 2-butyne(g) + H₂(g) trans-2-butene(g) K = 3.61×10²1 2-butyne(g) + H₂(g) cis-2-butene(g) K = 1.05x1021 What is the equilibrium constant for the following reaction? cis-2-butene(g) trans-2-butene(g) Submit Answer Only a number required. Computer reads units of "-butene (g)". Tries 0/8 Previous Tries Copyright: Department of Chemistry, Simon Fraser University - ⒸSFU Chemistry 2020-2022

Combining Reactions and Equilibrium Constants Given: 2-butyne(g) + H₂(g) trans-2-butene(g) K = 3.61×10²1 2-butyne(g) + H₂(g) cis-2-butene(g) K = 1.05x1021 What is the equilibrium constant for the following reaction? cis-2-butene(g) trans-2-butene(g) Submit Answer Only a number required. Computer reads units of "-butene (g)". Tries 0/8 Previous Tries Copyright: Department of Chemistry, Simon Fraser University - ⒸSFU Chemistry 2020-2022

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter13: Chemical Equilibrium

Section: Chapter Questions

Problem 13Q: Suppose a reaction has the equilibrium constant K = 1.3 108. What does the magnitude of this...

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Suppose a reaction has the equilibrium constant K = 1.3 108. What does the magnitude of this constant tell you about the relative concentrations of products and reactants that will be present once equilibrium is reached? Is this reaction likely to be a good source of the products?
Consider the following equilibria involving SO2(g) and their corresponding equilibrium constants. SO2(g) + 12 O2(g) SO3(g) K1 2SO3(g) 2SO2(g) + O2(g) K2 Which of the following expressions relates K1 to K2? (a) K2=K12 (b) K22=K1 (c) K2 = K1 (d) K2 = 1/K1 (e) K2=1/K12
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The equilibrium constant Kc for the synthesis of methanol, CH3OH. CO(g)+2H2(g)CH3OH(g) is 4.3 at 250C and 1.8 at 275C. Is this reaction endothermic or exothermic?
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After a mixture of cis-2-butene and trans-2-butene has reached equilibrium at 600 K, where Kc = 1.47, half of the cis-2-butcne is suddenly removed. Answer these questions: (a) Is the new mixture at equilibrium? Explain why or why not. (b) In the new mixture, which rate is faster, cis trans or trans cis? Or are both rates the same? (c) In an equilibrium mixture, which concentration is larger, cis-2-butenc or trans-2-butene? (d) If the concentration of cis-2-butene at equilibrium is 0.10 mol/L, what will be the concentration of trans-2-butene?
Show that the complete chemical equation, the total ionic equation, and the net ionic equation for the reaction represented by the equation KI(aq)+I2(aq)KI3(aq) give the same expression for the reaction quotient. KI3 is composed of the ions K+ and I3-.
7-64 As we shall see in Chapter 20, there are two forms of glucose, designated alpha and betawhich are in equilibrium in aqueous solution. The equilibrium constant for the reaction is 1.5 at 30°C. (a) If you begin with a fresh 1.0 M solution of D-glucose in water, what will be its concentration when equilibrium is reached? (b) Calculate the percentage of glucose and of glucose present at equilibrium in aqueous solution at 30°C.
Consider the equation G = G + RT ln(Q). What is the value of G for a reaction at equilibrium? What does Q equal at equilibrium? At equilibrium, the previous equation reduces to G = RT ln(K). When G 0, what does it indicate about K? When G 0, what does it indicate about K? When t G = 0, what does it indicate about K? G predicts spontaneity for a reaction, whereas G predicts the equilibrium position. Explain what this statement means. Under what conditions can you use G to determine the spontaneity of a reaction?
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