Question 3 PCI5 dissociates according to the reaction: PCI5(g) PC13(g) + Cl₂(g). At initial time, 1.00 mole of PCl5 was placed in one liter of solution. When equilibrium was established, the [PCI5] = [PC13] = = [Cl₂] = 0.50 M. What is the equilibrium constant for this reaction? A 0.25 B 0.50 C 1.0 D 2.5 A B C D

Question 3 PCI5 dissociates according to the reaction: PCI5(g) PC13(g) + Cl₂(g). At initial time, 1.00 mole of PCl5 was placed in one liter of solution. When equilibrium was established, the [PCI5] = [PC13] = = [Cl₂] = 0.50 M. What is the equilibrium constant for this reaction? A 0.25 B 0.50 C 1.0 D 2.5 A B C D

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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QUESTION 10 Write the equilibrium expression for each chemical equation: PCI5(a) PC13(0 + Cl2a) [PCI,][Cl,] [PCI,] [PCI,][Cl,] K = K = [PCI,] [PCl;] K = [PCI,][Cl,] [PCI;] K = [PCI,][C!,]
QUESTION 2 Consider the following reaction and its equilibrium constant: 12(g) + Br2(g) = 2 IBr(g) Kc=1.1 x 102 A reaction mixture contains 0.51 M 12, 0.27 M Br2 and 3.5 M IBr. Which of the following statements is TRUE concerning this system? OA. The reaction quotient will decrease. OB. The reaction will shift in the direction of reactants. OC. The system is at equilibrium. OD. The reaction will shift in the direction of products. O E. The equilibrium constant will decrease.
Question 4 A student set up the reaction with 0.081 M Fe and 1.0x10 M SCN, They end up with an equilibrium concentration of (Fe(SCN)}2 of 8.3x10S M. Based on these results, what is the value of the equilibrium constant K? 10
Question 14 The equilibrium constant, Kc, for the following reaction is 1.0 x 10P at 1500K. 2 NO(g) = N2(g) + O2(g) If 0.750 M N, and 0.750MO, are allowed to equilibrate at 1500 K, what is the equilibrium concentration of NO? O a. 5.5 x 10-3 M O b. 6.7 x 10-4 M O. 1.2 x 103 M O d. 2,4 x 10-3 M O e. 2.7x 103 M hp
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Question 1 1 Consider the following reaction at 200 °C: 2C0(g) + 02(g) = 2C02(g) An equilibrium mixture contains 0.200 mol CO, 1.30 mol 02 and 0.300 mol CO2 in a 500. mL reactor. At a certain instant, a valve is opened, and 0.100 mol of CO2 is added to the reactor. Determine the value of Ke at 200 °C Once equilibrium has been re-established, the concentration of oxygen gas in the reactor was measured to be 2.66 M. Determine the concentration of the other species present in the system for this set of conditions.
Question 28 At 25 °C, Kc 1.6 x 10-34 for the reaction 2HCI(g) + I2(s) 2HI(g) + Cl2(g) Suppose 0.100 mol of HCl and solid I2 are placed in a 1.00 L container. What will be the equilibrium concentrations of HI and Cl2 in the container? [HI] M %3D [Cl2] = %3D
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Question 25 At 400°C, 2.5 moles NOCI was placed in a 2.5 L reaction vessel. After equilibrium was established, it was found that 28% of the NOCI had dissociated according to the equation: 2NOCI(g) →→→ 2NO(g) + Cl₂(g). The equilibrium constant, Kc, for the reaction is A 0.021 B 0.039 C 0.17 D 5.4 A B C C O
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