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31. It is a type of reaction wherein reactants disappear to form products and at a certain time, products may react to give back the original reactants. A. Irreversible Reaction B. Reversible Reactions C. Physical Reaction D. Chemical Reaction

31. It is a type of reaction wherein reactants disappear to form products and at a certain time, products may react to give back the original reactants. A. Irreversible Reaction B. Reversible Reactions C. Physical Reaction D. Chemical Reaction

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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31. It is a type of reaction wherein reactants disappear to form products and at a certain time, products may react to give back the original reactants. A. Irreversible Reaction B. Reversible Reactions C. Physical Reaction D. Chemical Reaction What can you conclude when equilibrium concentrations of products are greater than the equilibrium concentrations of 32. reactants? A. reactants are favored B. Low ke value C. High ko value D. products are favored 44 Aqueous chromate ion exists in equilibrium with aqueous dichromate ion in acidic solution. 2 CrO(ag) + 2 H(ar ++ 2 C20P + HzOn 33. What will be the effect on the equilibrium when the concentration of dichromate ion is increased? A. forward rxn is favored B. reverse rxn is favored C. no effect D. none of these 34. What will be the effect on the equilibrium when the concentration of dichromate ion is increased? A. forward rxn is favored B. reverse rxn is favored C. no effect Given the following equilibrium mixture of gases at 500°C where AH is negative: D. none of these 35-38 6. COg) + Ozig) + CO219) State the direction in which the equilibrium mixture would be shifted upon the application of the following changes 35. Increasing the temperature. A. forward B. reverse C. no shift D. cannot be determined 36. Cooling below 100°C. A. forward B. reverse C. no shift D. cannot be determined 37. Doubling the pressure. A. forward B. reverse C. no shift D. cannot be determined 38. Adding a negative catalyst A. forward B. reverse C. no shift D. cannot be determined 39. A set of postulates describing the process of ionization. A. lonic Theory B. Collision Theory C. Principle of Le Chatlier D. Solubility Principle 40. In the Bronsted-Lowry model, an acid is A. a proton donor B. a proton acceptor The species formed when a proton is removed from an acid is called C. an electron pair acceptor D. an electron pair donor 41, A. cation B. conjugate base Refers to the species that can either accept or donate a proton is called C. conjugate acid D. buffer 42. A. Lewis base B. Bronsted-Lowry acid C. Arrhenius acid D. Amphiprotic 43. What is the conjugate base of HBr? A. H* В. Н- С. Вг D. Br 44. What is the conjugate acid of ammonia? A. H* В. Н- C. NH3 D. NH4 45. If the H30 concentration is less than 1.0 x 10-7 M, the solution is A. basic B. acidic C. neutral D. amphiprotic 46. All of the following species are strong acids EXCEPT
Transcribed Image Text:31. It is a type of reaction wherein reactants disappear to form products and at a certain time, products may react to give back the original reactants. A. Irreversible Reaction B. Reversible Reactions C. Physical Reaction D. Chemical Reaction What can you conclude when equilibrium concentrations of products are greater than the equilibrium concentrations of 32. reactants? A. reactants are favored B. Low ke value C. High ko value D. products are favored 44 Aqueous chromate ion exists in equilibrium with aqueous dichromate ion in acidic solution. 2 CrO(ag) + 2 H(ar ++ 2 C20P + HzOn 33. What will be the effect on the equilibrium when the concentration of dichromate ion is increased? A. forward rxn is favored B. reverse rxn is favored C. no effect D. none of these 34. What will be the effect on the equilibrium when the concentration of dichromate ion is increased? A. forward rxn is favored B. reverse rxn is favored C. no effect Given the following equilibrium mixture of gases at 500°C where AH is negative: D. none of these 35-38 6. COg) + Ozig) + CO219) State the direction in which the equilibrium mixture would be shifted upon the application of the following changes 35. Increasing the temperature. A. forward B. reverse C. no shift D. cannot be determined 36. Cooling below 100°C. A. forward B. reverse C. no shift D. cannot be determined 37. Doubling the pressure. A. forward B. reverse C. no shift D. cannot be determined 38. Adding a negative catalyst A. forward B. reverse C. no shift D. cannot be determined 39. A set of postulates describing the process of ionization. A. lonic Theory B. Collision Theory C. Principle of Le Chatlier D. Solubility Principle 40. In the Bronsted-Lowry model, an acid is A. a proton donor B. a proton acceptor The species formed when a proton is removed from an acid is called C. an electron pair acceptor D. an electron pair donor 41, A. cation B. conjugate base Refers to the species that can either accept or donate a proton is called C. conjugate acid D. buffer 42. A. Lewis base B. Bronsted-Lowry acid C. Arrhenius acid D. Amphiprotic 43. What is the conjugate base of HBr? A. H* В. Н- С. Вг D. Br 44. What is the conjugate acid of ammonia? A. H* В. Н- C. NH3 D. NH4 45. If the H30 concentration is less than 1.0 x 10-7 M, the solution is A. basic B. acidic C. neutral D. amphiprotic 46. All of the following species are strong acids EXCEPT
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