Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed to convert 0.119 mol of gaseous ethanol at 300.0°C and1 atm to liquid ethanol at 25.0°C and 1 atm: b.p. at 1 atm: 78.5°C AH° : 40.5 kJ/mol vap Cgas 1.43 J/g°C Cliquid 2.45 J/g•°C

Enter your answer in the provided box. From the data below, calculate the total heat (in J) needed to convert 0.119 mol of gaseous ethanol at 300.0°C and1 atm to liquid ethanol at 25.0°C and 1 atm: b.p. at 1 atm: 78.5°C AH° : 40.5 kJ/mol vap Cgas 1.43 J/g°C Cliquid 2.45 J/g•°C

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter6: Thermochemistry

Section: Chapter Questions

Problem 37E: Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 40....

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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

Enter your answer in the provided box.
From the data below, calculate the total heat (in J) needed to convert 0.119 mol of gaseous ethanol at
300.0°C and 1 atm to liquid ethanol at 25.0°C and 1 atm:
AH
: 40.5 kJ/mol
vap
b.p. at 1 atm: 78.5°C
Cgas
1.43 J/g °C
Cliquid
2.45 J/g.°C

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