Calculate the standard enthalpy change for the reaction2C8H18() + 1702(g) 16CO(g) + 18H20().Given2C3H1S(1)+ 2502(g)→16CO:(g)+ 18H;O(1) AH°=-11,020KJ/mol2C0(g)+ O2(g)→ 2CO2(g)AH°=-566.0 kJ/molMultiple Choice6,492 kJ/mol15,550 kJ/mol-6,492 kJ/mol-10.450 kJ/mol10,450 kJ/mol20 of 30Prey

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Calculate the standard enthalpy change for the reaction 2C8H18() + 1702(g) 16CO(g) + 18H20(). Given 2C3H18(1)+2502(g)→16CO2(g)+18H;0(1) AH°=-11,020kl/mol 2C0(g)+ O2(g)→ 2CO2(g) AH=-566.0 kJ/mol

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

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

Calculate the standard enthalpy change for the reaction
2C8H18() + 1702(g) 16CO(g) + 18H20().
Given
2C3H1S(1)+ 2502(g)→16CO:(g)+ 18H;O(1) AH°=-11,020KJ/mol
2C0(g)+ O2(g)→ 2CO2(g)
AH°=-566.0 kJ/mol
Multiple Choice
6,492 kJ/mol
15,550 kJ/mol
-6,492 kJ/mol
-10.450 kJ/mol
10,450 kJ/mol
20 of 30
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