1. (6 points) For the equilibrium 2 IBr(g) g) +Brg), Kp 8.5x 10-3 at 150 °C. If 0.025 atm of IBr is placed in a 1.0-L container, what are the partial pressures of IBr, I2 and Br2 at equilibrium? . C1l e fLe nd 2 00o mal at 44 C. The

1. (6 points) For the equilibrium 2 IBr(g) g) +Brg), Kp 8.5x 10-3 at 150 °C. If 0.025 atm of IBr is placed in a 1.0-L container, what are the partial pressures of IBr, I2 and Br2 at equilibrium? . C1l e fLe nd 2 00o mal at 44 C. The

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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[Review Topics] [References] Use the References to access important values if needed for this question. A student ran the following reaction in the laboratory at 502 K: PC13 (g) + Cl2 (g) =PC15 (9) When she introduced 0.183 moles of PC13 (g) and 0.208 moles of Cl₂(g) into a 1.00 liter container, she found the equilibrium concentration of Cl₂ (g) to be 0.0587 M. Calculate the equilibrium constant, Kc, she obtained for this reaction. Ke = Retry Entire Group Submit Answer 2 more group attempts remaining Previous Next> Email Instructor Save and Exit
Consider the following equilibrium: N₂(g) + 3H₂(g)2NH, (g) AG- --34, k Now suppose a reaction vessel is filled with 2.94 atm of nitrogen (N₂) and 1.53 atm of ammonia (NH₂) at 239. "C. Answer the following questions about this system: Under these conditions, will the pressure of NH, tend to rise or fall? Is it possible to reverse this tendency by adding H₂? In other words, if you said the pressure of NH3 will tend to rise, can that be changed to a tendency to fall by adding H₂? Similarly, if you said the pressure of NH, will tend to fall, can that be changed to a tendency to rise by adding H₂? If you said the tendency can be reversed in the second question, calculate the minimum pressure of H₂ needed to reverse it. Round your answer to 2 significant digits. Orise O fall O yes O no
Consider the following system at equilibrium where H° = -111 kJ/mol, and Kc = 0.159, at 723 K. N2(g) + 3H2(g) 2NH3(g) If the TEMPERATURE on the equilibrium system is suddenly decreased: The value of Kc fill in the blank 1 A. increases. B. decreases. C. remains the same. The value of Q fill in the blank 2 A. is greater than Kc. B. is equal to Kc. C. is less than Kc. The reaction must: fill in the blank 3 A. run in the forward direction to reestablish equilibrium. B. run in the reverse direction to reestablish equilibrium. C. remain the same. It is already at equilibrium. The concentration of H2 will: fill in the blank 4 A. increase. B. decrease. C. remain the same.
4. Sketch a graphical representation of the following events for the equilibrium below. PCIse 5 PCe + Cl ΔΗ = + 88 kJ/mol 15(g) 3(g) 2(g) a) PCI, is introduced into a flask at t=0 to a concentration of 2 mol/L. b) The flask is heated gently until no further changes in concentration of PCl, occur (5 minutes). At this time, the concentration of PCl(g) is 1.25 mol/L. c) At t=10 min an additional 0.25 mol/L of chlorine gas is injected into the flask. d) At t=15 min, no further changes in concentration were observed. Indicate the places on the graph where the system is at equilibrium. f) Use the information provided to calculate K, the equilibrium constant of this reactions. Conc'n (mol/L) Time (min)
Consider the following equilibrium: 2NO () + Ci, e) - 2NOCI (e) AG--41. kJ Now suppose a reaction vessel is filled with 9.33 atm of chlorine (Ci,) and 6.96 atm of nitrosyl chloride (NOCI) at 481. "C. Answer the following questions about this system: O rise Under these conditions, will the pressure of Cl, tend to rise or fall? Is it possible to reverse this tendency by adding NO In other words, if you said the pressure of Cl, will tend to rise, can that be yes changed to a tendency to fall by adding NOr Similarly, you said the no pressure of Cl, will tend to fall, can that be changed to a tendency to me by adding NO If you said the tendency can be reverned in the second question, calculate the minimum pressure of NO needed to reverse it atm Round your arswer to 2 significant digits.
At a certain temperature, the ?p for the decomposition of H2S is 0.770. H2S(g)↽−−⇀H2(g) + S(g) Initially, only H2S is present at a pressure of 0.268 bar in a closed container. What is the total pressure in the container at equilibrium? Ptotal= bar
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