CHEM 121 THERMODYNAMICS FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials!
0 view 0 purchase
Course
CHEM 121
Institution
CHEM 121
CHEM 121 THERMODYNAMICS FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials!
Thermochemistry
the study of chemical reactions and the correlated changes in energy
Energy
the capacity to do work or supply heat
mechanical energy
energy due to motion or position. The su...
CHEM 121 THERMODYNAMICS FINAL EXAM | UPDATED
QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials!
Thermochemistry
the study of chemical reactions and the correlated changes in energy
Energy
the capacity to do work or supply heat
mechanical energy
energy due to motion or position. The sum of potential energy and kinetic energy
potential energy
Energy due to an objects position relative to other objects
Kinetic energy
energy due to motion
Joule (J)
SI unit of energy. equal to the amount of energy required to move 1kg mass a distance
of 1 meter
Calorie (cal)
common unit of energy. Equal to the amount of energy required to raise the temperature
of 1g of water by 1°C
kcal
1000 calories. Energy needed to raise the temperature of 1000g of water by 1°C.
(Calories in food)
System
a well defined part of the universe and the source of energy being studied
surroundings
everything else (rest of the universe)
open system
can exchange matter and energy with surroundings
closed system
can exchange energy but not matter with surroundings
isolated system
cannot exchange matter and energy with surroundings
heat (q)
thermal energy transferred between a system and its surroundings
work(w)
the energy resulting from a force acting on an object
exothermic
heat flows out of the system and into the surroundings
endothermic
heat flows into system from the surrounds
Ex) cooking egg
endothermic
ex) melting ice cubes
endothermic
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller SUPERGRADES01. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
