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Using Hess’s Law to Calculate ?HThe enthalpy of reaction

Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward ISBN: 9780321696724 27

Solution for problem 8PE Chapter 5

Chemistry: The Central Science | 12th Edition

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Chemistry: The Central Science | 12th Edition | ISBN: 9780321696724 | Authors: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward

Chemistry: The Central Science | 12th Edition

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Problem 8PE

Problem 8PE

Using Hess’s Law to Calculate ΔH

The enthalpy of reaction for the combustion of C to CO2 is -393.5 kJ/mol C, and the enthalpy for the combustion of CO to CO2 is-283.0 kJ/mol CO:

1.         C(s) + O2(g) → CO2(g) ΔH = -393.5 kJ

2.         CO(g) + ½ O2(g) → CO2(g) ΔH = -283.0 kJ

Using these data, calculate the enthalpy for the combustion of C to CO:

3.         C(s) + ½ O2(g) → CO(g) ΔH = ?

Carbon occurs in two forms, graphite and diamond. The enthalpy of the combustion of graphite is -393.5 kJ>mol, and that of diamond is -395.4 kJ/mol:

C(graphite) + O2(g)→CO2(g) ΔH = -393.5 kJ

C(diamond) + O2(g)→CO2(g) ΔH = -395.4 kJ

Calculate ΔH for the conversion of graphite to diamond:

C(graphite) → C(diamond) ΔH = ?

Step-by-Step Solution:
Step 1 of 3

Elementary Chemistry 8.1­8.3 8.1 Chemical Equations  Reactants/Reagents: substances that react  Products: substances that are produced  In a reaction some or all of the reactants change their bonding  Equation: formulas for the reactants are placed on the left side of the arrow and those for the products are placed on the right  Balanced Equation: shows the relative number of atoms of each of the elements involved o Always needed o Equal numbers of atoms of each element on each side  Coefficients: numbers that are written before the formulas o Tell relative numbers of formula units of reactants and products involved in a reaction and balances the number of atoms of each e

Step 2 of 3

Chapter 5, Problem 8PE is Solved
Step 3 of 3

Textbook: Chemistry: The Central Science
Edition: 12
Author: Theodore E. Brown; H. Eugene LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward
ISBN: 9780321696724

The full step-by-step solution to problem: 8PE from chapter: 5 was answered by , our top Chemistry solution expert on 04/03/17, 07:58AM. This textbook survival guide was created for the textbook: Chemistry: The Central Science, edition: 12. The answer to “Using Hess’s Law to Calculate ?HThe enthalpy of reaction for the combustion of C to CO2 is -393.5 kJ/mol C, and the enthalpy for the combustion of CO to CO2 is-283.0 kJ/mol CO:1. C(s) + O2(g) ? CO2(g) ?H = -393.5 kJ2. CO(g) + ½ O2(g) ? CO2(g) ?H = -283.0 kJUsing these data, calculate the enthalpy for the combustion of C to CO:3. C(s) + ½ O2(g) ? CO(g) ?H = ?Carbon occurs in two forms, graphite and diamond. The enthalpy of the combustion of graphite is -393.5 kJ>mol, and that of diamond is -395.4 kJ/mol:C(graphite) + O2(g)?CO2(g) ?H = -393.5 kJC(diamond) + O2(g)?CO2(g) ?H = -395.4 kJCalculate ?H for the conversion of graphite to diamond:C(graphite) ? C(diamond) ?H = ?” is broken down into a number of easy to follow steps, and 122 words. Since the solution to 8PE from 5 chapter was answered, more than 288 students have viewed the full step-by-step answer. This full solution covers the following key subjects: Enthalpy, mol, Graphite, combustion, Diamond. This expansive textbook survival guide covers 49 chapters, and 5471 solutions. Chemistry: The Central Science was written by and is associated to the ISBN: 9780321696724.

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