For a particular isomer of C3H,8, the combustion reaction produces 5099.5 kJ of heat per mole of C3H13(g) consumed, understandard conditions.25C,H1g(g) + 0,(8) – 8 CO,(g) + 9 H,O(g)8 CO,(g) + 9 H,0(g)AHixn = -5099.5 kJ/molrxiWhat is the standard enthalpy of formation of this isomer of C3H13(g)?ΔΗ-215kJ/molIncorrect

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For a particular isomer of C,H18, the combustion reaction produces 5099.5 kJ of heat per mole of C,H8(g) consumed, under standard conditions. 25 C;H18(g) + 0,(g) 8 CO,(g) + 9 H,0(g) AHixn = -5099.5 kJ/mol > What is the standard enthalpy of formation of this isomer of C,H g(g)?

For a particular isomer of C,H18, the combustion reaction produces 5099.5 kJ of heat per mole of C,H8(g) consumed, under standard conditions. 25 C;H18(g) + 0,(g) 8 CO,(g) + 9 H,0(g) AHixn = -5099.5 kJ/mol > What is the standard enthalpy of formation of this isomer of C,H g(g)?

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

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Concept explainers

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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.

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For a particular isomer of C3H,8, the combustion reaction produces 5099.5 kJ of heat per mole of C3H13(g) consumed, under
standard conditions.
25
C,H1g(g) + 0,(8) – 8 CO,(g) + 9 H,O(g)
8 CO,(g) + 9 H,0(g)
AHixn = -5099.5 kJ/mol
rxi
What is the standard enthalpy of formation of this isomer of C3H13(g)?
ΔΗ
-215
kJ/mol
Incorrect

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