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Ammonia, NH3, is a common constituent of many natural waters and wastewaters. In treating water containing ammonia at a water-treatment plant, the ammonia reacts with the disinfectant hypochlorous acid, HOCl, in solution to form monochloroamine, NH2Cl as follows: NH3 + HOCl – NH2Cl + H20  (a) Write the rate law equations for NH3 and for NH2Cl. • What is the reaction order with respect to NH3? Explain your answer. • What order is this reaction overall? Explain your answer. (b) If the HOCl concentration is held constant and equals 10-4 M, and the rate constant equals 5.1 × 106 L/mole-s, calculate the time required to reduce the concentration of NH3 to one-half its original value

Ammonia, NH3, is a common constituent of many natural waters and wastewaters. In treating water containing ammonia at a water-treatment plant, the ammonia reacts with the disinfectant hypochlorous acid, HOCl, in solution to form monochloroamine, NH2Cl as follows: NH3 + HOCl – NH2Cl + H20  (a) Write the rate law equations for NH3 and for NH2Cl. • What is the reaction order with respect to NH3? Explain your answer. • What order is this reaction overall? Explain your answer. (b) If the HOCl concentration is held constant and equals 10-4 M, and the rate constant equals 5.1 × 106 L/mole-s, calculate the time required to reduce the concentration of NH3 to one-half its original value

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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Ammonia, NH3, is a common constituent of many natural waters and wastewaters. In treating water containing ammonia at a water-treatment plant, the ammonia reacts with the disinfectant hypochlorous acid, HOCl, in solution to form monochloroamine, NH2Cl as follows: NH3 + HOCl – NH2Cl + H20

 (a) Write the rate law equations for NH3 and for NH2Cl. • What is the reaction order with respect to NH3? Explain your answer. • What order is this reaction overall? Explain your answer. (b) If the HOCl concentration is held constant and equals 10-4 M, and the rate constant equals 5.1 × 106 L/mole-s, calculate the time required to reduce the concentration of NH3 to one-half its original value.

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