-)aGiven the balanced equation, use the bond enthalpies toestimate AHrxn (in kJ) for the following combustion reaction:HHII2 H-C-C-H(g) + 70=0(g) → 40=C=O(g) + 6H-O-H(g)Η ΗBEC-H=413 kJ/molBEC-c=348 kJ/molBEO=O=495 kJ/molBEC=O=799 kJ/molBEO-H=463 kJ/molAnswer Parameters:• Report your answer with FOUR significant figures.• IF NEGATIVE, a-sign must be placed IN FRONT of thenumber.• The number must be in decimal form and not include anyother units or symbols.

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Given the balanced equation, use the bond enthalpies to estimate AHrxn (in kJ) for the following combustion reaction:

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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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

-)
a
Given the balanced equation, use the bond enthalpies to
estimate AHrxn (in kJ) for the following combustion reaction:
HH
II
2 H-C-C-H(g) + 70=0(g) → 40=C=O(g) + 6H-O-H(g)
Η Η
BEC-H=413 kJ/mol
BEC-c=348 kJ/mol
BEO=O=495 kJ/mol
BEC=O=799 kJ/mol
BEO-H=463 kJ/mol
Answer Parameters:
• Report your answer with FOUR significant figures.
• IF NEGATIVE, a-sign must be placed IN FRONT of the
number.
• The number must be in decimal form and not include any
other units or symbols.

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