Negative and Positive Sings of Enthalpy System - Heat from the system ΔΗ A+B C+D When a reaction results in evolution of heat, it is said to bel energy flows system). system What happens to the temperature of the system? Surroundings- everything else in the universe Heat by the system ΔΗ When a reaction absorbs energy from the surroundings, it is called an reaction. What happens to the temperature of the system?
Negative and Positive Sings of Enthalpy System - Heat from the system ΔΗ A+B C+D When a reaction results in evolution of heat, it is said to bel energy flows system). system What happens to the temperature of the system? Surroundings- everything else in the universe Heat by the system ΔΗ When a reaction absorbs energy from the surroundings, it is called an reaction. What happens to the temperature of the system?
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section: Chapter Questions
Problem 32PS: Nitrogen gas is confined in a cylinder with a movable piston under a constant pressure of 9.95 104...
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Transcribed Image Text:Negative and Positive Sings of Enthalpy
System -
Heat
from the system
ΔΗ
A+B-C+D
When a reaction results in
evolution of heat, it is said to
be
(energy flows
system).
system
What happens to the temperature of the
system?
Surroundings- everything
else in the universe
Heat
by the system
ΔΗ
When a reaction absorbs
energy from the surroundings,
it is called an
reaction.
What happens to the temperature
of the system?
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