Which change to an equilibrium mixture of this reaction results in the formation of more H,S? O an increase in the amount of NH, HS in the reaction vessel O an increase in temperature O a decrease in the volume of the reaction vessel (at constant temperature) all of the ahouo

Which change to an equilibrium mixture of this reaction results in the formation of more H,S? O an increase in the amount of NH, HS in the reaction vessel O an increase in temperature O a decrease in the volume of the reaction vessel (at constant temperature) all of the ahouo

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 equilibrium system described by the chemical reaction below, which has a value of Kc equal to 1.2 x 10 at a certain temperature. If a solid sample of NH SH decomposes, what will the equilibrium concentration of NH, be? NH,SH(s) = NH,(g) + H,S(g) 1 2 3 NEXT > Based on the given values, set up ICE table in order to determine the unknown. NH,SH(s) NH,(g) H¸S(9) + Initial (M) Change (M) Equilibrium (M) 2 RESET 1.2 x 101 x+ -X +2x -2x 1.2 x 10*+x 1.2 x 10 - x 1.2 x 10* + 2x 1.2 x 10* - 2x
Consider the following system at equilibrium at 698 K. 2 HI(g)→ H₂(g) + I₂ (9) Use the References to access importa When some HI(g) is removed from the equilibrium system at constant temperature, the reaction must O run in the forward direction to reestablish equilibrium. O run in the reverse direction to reestablish equilibrium. O remain the same. It is already at equilibrium. The concentration of H₂ will O increase. O decrease. O remain the same.
The reaction below was allowed to react at 375 degrees Celcius until it formed an equilibrium. At equilibrium, the 16.2 L container was found to contain 1.9 mol SiF4, 1.1 mol H2O, 3.5 mol SiO2, and 2.9 mol HF. What is the Kc of the reaction at this temperature? SiF4 (g) + 2H2O (g) <--> SiO2 (s) + 4HF(g)
When a reaction's reaction quotient is smaller than its equilibrium constant, what does this indicate about the reaction's equilibrium? The reaction must proceed in the reverse direction to return to equilibrium. The reaction is at equilibrium and will not change. O The reaction must proceed in the forward direction to return to equilibrium. O Nothing. There is no relationship between the reaction quotient and equilibrium constant.
A chemical engineer is studying the following reaction: BF3(aq) + NH3(aq) → BF3NH₂(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 0.63. C The engineer charges ("fills") three reaction vessels with boron trifluoride and ammonia, 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 vessel A B C compound BF₂ NH₂ BF₂NH₂ BF 3 NH₂ BF3 NH3 BF 3 NH₂ BF₂NH3 concentration 0.47 M 0.48 M 1.03 M 0.46 M 0.47 M 1.04 M 0.94 M 0.95 M 0.56 M expected change in concent ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase O ↓ decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease ↓decrease ation (no change) (no change) (no change) (no change) (no…
= O KINETICS AND EQUILIBRIUM Using an equilibrium constant to predict the direction of... A chemical engineer is studying the following reaction: 2 NO(g) + 2H₂(g) → N₂(g) + 2H₂O(g) reaction vessel At the temperature the engineer picks, the equilibrium constant X for this reaction is 0.33. The engineer charges ("fills") four reaction vessels with nitrogen monoxide and hydrogen, 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. A B с compound NO H₂ N₂ H₂O NO H₂ N₂ H₂O NO H₂ N₂ H₂O pressure 6.39 atm 6.40 atm 4.06 atm 7.34 atm 6.32 atm 6.33 atm 5.43 atm 9.91 atm 6.14 atm 6.15 atm 4.19 atm 7.59 atm expected change in pressure O ↑ increase O ↑ increase ↑ increase ↑ increase O ↑ increase O ↑ increase O ↑ increase ↑ increase O ↑ increase O ↑ increase O ↑ increase O…
A system is considered to be at equilibrium. Which statement must be true? a) The reaction has stopped. b) The products and reactants are now equal in concentration. c) The reaction equilibrium state cannot be altered. d) There is no net change in the amount of reactant or product.
A sample of H,S(g) at 0.495 atm is placed in a container and the following reaction reaches equilibrium. What is the total pressure of all gases in the container? 2H2S(g) = 2H2(g) + S2(g) K, = 3.85 x 10-7 0.497 atm 0.215 atm 0.793 atm 0.624 atm 0.387 atm O O O
Most systems in nature exist in equilibrium. O True O False
A chem ngineer is studying the following reaction: 4 HCl(g)+O,(g) – 2 H,0(g)+2Cl,(g) At the temperature the engineer picks, the equilibrium constant K, for this reaction is 0.0040. The engineer charges ("fillsf) four reaction vessels with hydrogen chloride and oxygen, and lets the reaction begin. He then measures the co 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 pressure expected change in pressure vessel HCl 8.71 atm Ot increase O! decrease O (no change) 02 8.13 atm O t increase OI decrease O (no change) H,0 3.63 atm Ot increase OI decrease (no change) I decrease (no change) Cl, 1.91 atm ease I decrease (no change) 7,61 atm t increase HCI I decrease O (no change) 7,86 atm O f increase 0, I decrease O (no change) 4.18 atm t increase H,0 I decrease (no change) t increase 2.46 atm Cl, I decrease O (no…