At 35°C,K =2.0 x 10-5 for the reaction2 NOCI(g) = 2 NO(g)+ Cl2 (g)Calculate the concentrations of all species at equilibrium for each of the following original mixtures.a. 2.6 moles of pure NOCl in a 2.0-L flask[NOCI]M[NO]M%3D[Cl2] =Mb. 1.0 mole ofNOC1 and 1.0 mole ofNO in a 1.0-L flask[NOCI] =M[NO] :M[Cl) ]M%3DС. 3.2 mole ofNOCI and 1.0 mole ofCl2 in a 1.0-L flask[NOCI]M[NO]M%D[Cl2]M

GIVEN :- Reaction constant ,K = 2.0 × 10-5 Temperature = 35℃ = 308K

At 35°C, K = 2.0 x 10-5 for the reaction 2 NOCI(g) = 2 NO(g) + Cl2 (g) Calculate the concentrations of all species at equilibrium for each of the following original mixtures. a. 2.6 moles of pure NOCI in a 2.0-L flask [NOCI] M NO] = [Cl2] M = b. 1.0 mole of NOCI and 1.0 mole of NO in a 1.0-L flask [NOCI] [NO] = M [Cl2] = M c. 3.2 mole of NOCI and 1.0 mole of Cl2 in a 1.0-L flask [NOCI] M [NO] M [Cl2] =

At 35°C, K = 2.0 x 10-5 for the reaction 2 NOCI(g) = 2 NO(g) + Cl2 (g) Calculate the concentrations of all species at equilibrium for each of the following original mixtures. a. 2.6 moles of pure NOCI in a 2.0-L flask [NOCI] M NO] = [Cl2] M = b. 1.0 mole of NOCI and 1.0 mole of NO in a 1.0-L flask [NOCI] [NO] = M [Cl2] = M c. 3.2 mole of NOCI and 1.0 mole of Cl2 in a 1.0-L flask [NOCI] M [NO] M [Cl2] =

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.22PAE

See similar textbooks

Similar questions

Consider the same reaction as in Question 11. In one experiment 1.0 mole of H2O(g) and 1.0 mole of CO(g) are put into a flask and heated to 350C. In a second experiment 1.0 mole of H2(g) and 1.0 mole of CO2(g) are put into another flask with the same volume as the first. This mixture is also heated to 350C. After equilibrium is reached, will there be any difference in the composition of the mixtures in the two flasks?
Iodine dissolves in water, but its solubility in a nonpolar solvent such as CCl4 is greater. Extracting iodine (I2) from water with the nonpolar solvent CCl4. I2 is more soluble in CCl4 and, after shaking a mixture of water and CCl4, the I2 has accumulated in the more dense CCl4 layer. The equilibrium constant is 85.0 for the process I2(aq) I2(CCl4) You place 0.0340 g of I2 in 100.0 mL of water. After shaking it with 10.0 mL of CCl4, how much I2 remains in the water layer?
Kc = 5.6 1012 at 500 K for the dissociation of iodine molecules to iodine atoms. I2(g) 2 I(g) A mixture has [I2] = 0.020 mol/Land [I] = 2.0 108 mol/L. Is the reaction at equilibrium (at 500 K)? If not, which way must the reaction proceed to reach equilibrium?
A common type of reaction we will study is that having a very small K value (K 1). Solving for equilibrium concentrations in an equilibrium problem usually requires many mathematical operations to be perfomed. However, the math involved when solving equilibrium problems for reactions having small K values (K 1) is simplified. What assumption is made when solving the equilibrium concentrations for reactions with small K values? Whenever assumptions are made, they must be checked for validity. In general, the 5% rule is used to check the validity of assuming x (or 2 x, 3x, and so on) is very small compared to some number. When x (or 2 x. 3x. and so on) is less than 5% of the number the assumption was made against, then the assumption is said to be valid. If the 5% rule fails, what do you do to solve for the equilibrium concentrations?
Consider the system 4 NH3(g) + 3 O2(g) ⇌ 2 N2(g) + 6 H20(ℓ) ΔrH° = −1530.4 kJ/mol How will the amount of ammonia at equilibrium be affected by removing O2(g) without changing the total gas volume? adding N2(g) without changing the total gas volume? adding water without changing the total gas volume? expanding the container? increasing the temperature? Which of these changes (i to v) increases the value of K? Which decreases it?
At 2300 K the equilibrium constant for the formation of NO(g) is 1.7 103. N2(g) + O2(g) 2 NO(g) (a) Analysis shows that the concentrations of N2 and O2 are both 0.25 M, and that of NO is 0.0042 M under certain conditions. Is the system at equilibrium? (b) If the system is not at equilibrium, in which direction does the reaction proceed? (c) When the system is at equilibrium, what are the equilibrium concentrations?
The diagram represents an equilibrium mixture for the reaction N2(g) + O2(g) ⇌ 2 NO(g) Estimate the equilibrium constant.
What is Le Chteliers principle? Consider the reaction 2NOCI(g)2NO(g)+Cl2(g) If this reaction is at equilibrium. what happens when the following changes occur? a. NOCI(g) is added. b. NO(g) is added. c. NOCI(g) is removed. d. Cl2(g) is removed. e. The container volume is decreased. For each of these changes, what happens to the value of K for the reaction as equilibrium is reached again? Give an example of a reaction for which the addition or removal of one of the reactants or products has no effect on the equilibrium position. In general, how will the equilibrium position of a gas-phase reaction be affected if the volume of the reaction vessel changes? Are there reactions that will not have their equilibria shifted by a change in volume? Explain. Why does changing the pressure in a rigid container by adding an inert gas not shift the equilibrium position for a gas-phase reaction?
Among the solubility rules previously discussed is the statement: All chlorides are soluble except Hg2Cl2, AgCI, PbCl2, and CuCl. (a) Write the expression for the equilibrium constant for the reaction represented by the equation AgCI(s)Ag+CI(aq). Is Kc1,1, or 1? Explain your answer. (b) Write the expression for the equilibrium constant for the reaction represented by the equation Pb2+(aq)+2CI(aq)PbCI2(s). Is Kc1,1, or 1? Explain your answer.