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Thermochemistry

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2020/2021 Written for academic year
Institution University Of Ottawa (U Of O )
Course Principles of Chemistry (CHM1311)
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Introduction to thermochemistry

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Pre Lecture

Types of energy
Energy the capacity to do work or to produce heat
PotentialEnergy Epo the energystored in an object due to its position

Epo mgh
kinetic Energy Ek the energyreleased due to motion
Ek v2
Im

Units of Energy
SI units for energy is joule CJ
2 3
lJ 1 Kg m 52 1 Pa m
Sometimes calorie is used instead of joule
1 cal 4.184 J
1cal 1000cal 1kcal
12 8 3145 Jim ol K


Important Terminology
System what is being observed
i


Surroundings i everything around the system
Universe i
everything system surroundings

Open i system can exchangeenergy r matter w the surroundings
Closed isystem can exchange energy only w surroundings
Isolated i system can't exchangematter or energy w the surroundings

Document information

Study
Biomedical Sciences
Uploaded on
August 3, 2021
Number of pages
4
Written in
2020/2021
Type
Class notes
Professor(s)
Brandi west
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