Le. [initial] reactants (eq] reactants Sample Problem The atmosphere contains large amounts of nitrogen and oxygen gases which do not react under ordinary conditions. However, they do react under extreme conditions such as those produced by a flash of lightning or inside the running of a car engine. The production of nitrogen oxides from these exhaust gases are a huge pollution problem. If a chemist puts 0.085 mol of nitrogen and 0.038 mol of oxygen gas in a rigid 1.5 L cylinder. What is the concentration of nitrogen monoxide gas NO (g) in the mixture at equilibrium? 2 NO The Keq is 4.2 x 10. N₂m + +O₂ (s) 188 Equilibrium Practice Problem #1 Nitrosyl chloride, NOCI, decomposes to form nitrogen monoxide, NO, and chlorine gas, Clas, according to the following equation: 2 NOCI 2 NO + Ch (a) Write the equilibrium constant expression for the above reaction. (b) Initially, 0.80 mol NOC is placed in a closed 2.00 L container at 35-C and allowed to reach equilibrium. At equilibrium, the system contains 0.35 mol/L of NOCI. Determine the equilibrium constant. (5.1 x 104) (c) At a specific time in the reaction progress, [NOCI] = 0.50 mol/L, [NO] 0.010 mol/L, and [Cl] 0.0010 mol/L. In which direction must the reaction proceed to establish equilibrium?
Le. [initial] reactants (eq] reactants Sample Problem The atmosphere contains large amounts of nitrogen and oxygen gases which do not react under ordinary conditions. However, they do react under extreme conditions such as those produced by a flash of lightning or inside the running of a car engine. The production of nitrogen oxides from these exhaust gases are a huge pollution problem. If a chemist puts 0.085 mol of nitrogen and 0.038 mol of oxygen gas in a rigid 1.5 L cylinder. What is the concentration of nitrogen monoxide gas NO (g) in the mixture at equilibrium? 2 NO The Keq is 4.2 x 10. N₂m + +O₂ (s) 188 Equilibrium Practice Problem #1 Nitrosyl chloride, NOCI, decomposes to form nitrogen monoxide, NO, and chlorine gas, Clas, according to the following equation: 2 NOCI 2 NO + Ch (a) Write the equilibrium constant expression for the above reaction. (b) Initially, 0.80 mol NOC is placed in a closed 2.00 L container at 35-C and allowed to reach equilibrium. At equilibrium, the system contains 0.35 mol/L of NOCI. Determine the equilibrium constant. (5.1 x 104) (c) At a specific time in the reaction progress, [NOCI] = 0.50 mol/L, [NO] 0.010 mol/L, and [Cl] 0.0010 mol/L. In which direction must the reaction proceed to establish equilibrium?
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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10:44
7.5 student.pdf
Approximation Kule: When can it be made?
An approximation may be made when the initial concentration of the reactants is more than 1000x greater than
the Keq. When this is the case, the change in the concentration of the reactants will be negligible at equilibrium.
Thus the initial concentrations of the reactants can be used to represent the equilibrium centration of the reactants:
i.e. [initial] reactants= [eq] reactants
Sample Problem
The atmosphere contains large amounts of nitrogen and oxygen gases which do not
react under ordinary conditions. However, they do react under extreme conditions such
as those produced by a flash of lightning or inside the running of a car engine. The
production of nitrogen oxides from these exhaust gases are a huge pollution problem. If a
chemist puts 0.085 mol of nitrogen and 0.038 mol of oxygen gas in a rigid 1.5 L cylinder.
What is the concentration of nitrogen monoxide gas NO (g) in the mixture at equilibrium?
N2 (9) + O2( 2 NO ( The Keq is 4.2 x 10
188
Equilibrium Practice Problem #1
Nitrosyl chloride, NOCI, decomposes to form nitrogen monoxide, NOh, and chlorine gas, Clash, according
to the following equation:
2 NOCI
2 NO + Cl2 (s)-
(a) Write the equilibrium constant expression for the above reaction.
(b) Initially, 0.80 mol NOC is placed in a closed 2.00 L container at 35°C and allowed to reach
equilibrium. At equilibrium, the system contains 0.35 mol/L of NOCI. Determine the equilibrium constant.
(5.1 x 104)
(c) At a specific time in the reaction progress, [NOCI] = 0.50 mol/L, [NO]= 0.010 mol/L, and [Cl] = 0.0010
mol/L. In which direction must the reaction proceed to establish equilibrium?
X](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdee3419c-c208-4262-b310-a45b99a36ca0%2F2c13f768-9107-41cd-a3b4-04a99885fe98%2Fyxk581_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1
10:44
7.5 student.pdf
Approximation Kule: When can it be made?
An approximation may be made when the initial concentration of the reactants is more than 1000x greater than
the Keq. When this is the case, the change in the concentration of the reactants will be negligible at equilibrium.
Thus the initial concentrations of the reactants can be used to represent the equilibrium centration of the reactants:
i.e. [initial] reactants= [eq] reactants
Sample Problem
The atmosphere contains large amounts of nitrogen and oxygen gases which do not
react under ordinary conditions. However, they do react under extreme conditions such
as those produced by a flash of lightning or inside the running of a car engine. The
production of nitrogen oxides from these exhaust gases are a huge pollution problem. If a
chemist puts 0.085 mol of nitrogen and 0.038 mol of oxygen gas in a rigid 1.5 L cylinder.
What is the concentration of nitrogen monoxide gas NO (g) in the mixture at equilibrium?
N2 (9) + O2( 2 NO ( The Keq is 4.2 x 10
188
Equilibrium Practice Problem #1
Nitrosyl chloride, NOCI, decomposes to form nitrogen monoxide, NOh, and chlorine gas, Clash, according
to the following equation:
2 NOCI
2 NO + Cl2 (s)-
(a) Write the equilibrium constant expression for the above reaction.
(b) Initially, 0.80 mol NOC is placed in a closed 2.00 L container at 35°C and allowed to reach
equilibrium. At equilibrium, the system contains 0.35 mol/L of NOCI. Determine the equilibrium constant.
(5.1 x 104)
(c) At a specific time in the reaction progress, [NOCI] = 0.50 mol/L, [NO]= 0.010 mol/L, and [Cl] = 0.0010
mol/L. In which direction must the reaction proceed to establish equilibrium?
X
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