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Part A Calkulate the enthalpy of the reaction 2NO(g) + Oz(x)→2NO;(g) given the following reactions and enthalpies of formation: 1. N2(g) + O2(8)→NO2(g), AH¡ = 33.2 kJ 2. +N2(g) + +O2(8)→NO(g), AĦ = 90.2 kJ Express your answer with the appropriate units. • View Available Hint(s) HA

Part A Calkulate the enthalpy of the reaction 2NO(g) + Oz(x)→2NO;(g) given the following reactions and enthalpies of formation: 1. N2(g) + O2(8)→NO2(g), AH¡ = 33.2 kJ 2. +N2(g) + +O2(8)→NO(g), AĦ = 90.2 kJ Express your answer with the appropriate units. • View Available Hint(s) HA

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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I Review | Constants | Periodic Table Hess's law states that "the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several steps." It is important to recall the following rules: Part A 1. When two reactions are added, their enthalpy values are added. 2. When a reaction is reversed, the sign of its enthalpy value changes. 3. When the coefficients of a reaction are multiplied by a factor, the enthalpy value is multiplied by that Calculate the enthalpy of the reaction 2NO(g) + O2(g)-2NO, (g) given the following reactions and enthalpies of formation: same factor. 1. N2(g) + O2(g)→NO2(g), AH = 33.2 kJ 2. N2 (g) + 02(g)→NO(g), AH = 90.2 kJ Express your answer with the appropriate units. • View Available Hint(s) AH = Value Units Submit
Transcribed Image Text:I Review | Constants | Periodic Table Hess's law states that "the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several steps." It is important to recall the following rules: Part A 1. When two reactions are added, their enthalpy values are added. 2. When a reaction is reversed, the sign of its enthalpy value changes. 3. When the coefficients of a reaction are multiplied by a factor, the enthalpy value is multiplied by that Calculate the enthalpy of the reaction 2NO(g) + O2(g)-2NO, (g) given the following reactions and enthalpies of formation: same factor. 1. N2(g) + O2(g)→NO2(g), AH = 33.2 kJ 2. N2 (g) + 02(g)→NO(g), AH = 90.2 kJ Express your answer with the appropriate units. • View Available Hint(s) AH = Value Units Submit
II Review | Constants | Periodic Table Hess's law states that "the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several steps." It is important to recall the following rules: AH° = Value Units 1. When two reactions are added, their enthalpy values are added. 2. When a reaction is reversed, the sign of its enthalpy value changes. 3. When the coefficients of a reaction are multiplied by a factor, the enthalpy value Submit multiplied by that • Part B same factor. Calculate the enthalpy of the reaction 4B(s) + 302 (g)→2B2O3 (s) given the following pertinent information: 1. B2O3 (s) + 3H20(g)-302(g) + B2H6 (g), 2. 2B(s) + 3H2 (g)→B2 H6 (g), 3. H2 (g) + +02(g)→H20(1), 4. H20(1)→H20(g), AH = +2035 kJ AH = +36 kJ AH = -285 kJ AH = +44 kJ Express your answer with the appropriate units. > View Available Hint(s) AH° = Value Units Submit
Transcribed Image Text:II Review | Constants | Periodic Table Hess's law states that "the heat released or absorbed in a chemical process is the same whether the process takes place in one or in several steps." It is important to recall the following rules: AH° = Value Units 1. When two reactions are added, their enthalpy values are added. 2. When a reaction is reversed, the sign of its enthalpy value changes. 3. When the coefficients of a reaction are multiplied by a factor, the enthalpy value Submit multiplied by that • Part B same factor. Calculate the enthalpy of the reaction 4B(s) + 302 (g)→2B2O3 (s) given the following pertinent information: 1. B2O3 (s) + 3H20(g)-302(g) + B2H6 (g), 2. 2B(s) + 3H2 (g)→B2 H6 (g), 3. H2 (g) + +02(g)→H20(1), 4. H20(1)→H20(g), AH = +2035 kJ AH = +36 kJ AH = -285 kJ AH = +44 kJ Express your answer with the appropriate units. > View Available Hint(s) AH° = Value Units Submit
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