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Calculation of Heats of Reaction

Calculation of Heats of Reaction

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
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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EXAMPLE 9.1-1 Calculation of Heats of Reaction 1. The standard heat of the combustion of n-butane vapor is C,H10(g) + O2(g) 4CO2(g) + 5 H;O(I): AĤ = -2878 kJ/mol Calculate the rate of enthalpy change, AĤ(kJ/s), if 2400 mol/s of CO, is produced in this reac- tion and the reactants and products are all at 25°C. 2. What is the standard heat of the reaction 2 C,H10(g) + 13 O2(g) -8 CO2(g) + 10 H2O(1) Calculate AH if 2400 mol/s of CO2 is produced in this reaction and the reactants and products are all at 25°C. 3. The heats of vaporization of n-butane and water at 25°C are 19.2 kJ/mol and 44.0 kJ/mol, re- spectively. What is the standard heat of the reaction C,H10(1) + 0;(g) → 4 CO,(g) + 5 H¿O(v) Calculate AH if 2400 mol/s of CO, is produced in this reaction and the reactants and products are all at 25°C.
Transcribed Image Text:EXAMPLE 9.1-1 Calculation of Heats of Reaction 1. The standard heat of the combustion of n-butane vapor is C,H10(g) + O2(g) 4CO2(g) + 5 H;O(I): AĤ = -2878 kJ/mol Calculate the rate of enthalpy change, AĤ(kJ/s), if 2400 mol/s of CO, is produced in this reac- tion and the reactants and products are all at 25°C. 2. What is the standard heat of the reaction 2 C,H10(g) + 13 O2(g) -8 CO2(g) + 10 H2O(1) Calculate AH if 2400 mol/s of CO2 is produced in this reaction and the reactants and products are all at 25°C. 3. The heats of vaporization of n-butane and water at 25°C are 19.2 kJ/mol and 44.0 kJ/mol, re- spectively. What is the standard heat of the reaction C,H10(1) + 0;(g) → 4 CO,(g) + 5 H¿O(v) Calculate AH if 2400 mol/s of CO, is produced in this reaction and the reactants and products are all at 25°C.
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