New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here


by: Mythri Partha

Thermodynamics CHEM 1332

Mythri Partha
View Full Document for 0 Karma

View Full Document


Unlock These Notes for FREE

Enter your email below and we will instantly email you these Notes for Fundamentals of Chemistry 2

(Limited time offer)

Unlock Notes

Already have a StudySoup account? Login here

Unlock FREE Class Notes

Enter your email below to receive Fundamentals of Chemistry 2 notes

Everyone needs better class notes. Enter your email and we will send you notes for this class for free.

Unlock FREE notes

About this Document

Chapter 16 for Chemistry 2 that covers thermodynamics with entropy, enthalpy, and free energy plus how they are related
Fundamentals of Chemistry 2
Simon Bott
Class Notes
Chemistry intro to thermodynamics chem2 bott uh




Popular in Fundamentals of Chemistry 2

Popular in Chemistry

This 3 page Class Notes was uploaded by Mythri Partha on Friday April 15, 2016. The Class Notes belongs to CHEM 1332 at University of Houston taught by Simon Bott in Spring 2016. Since its upload, it has received 16 views. For similar materials see Fundamentals of Chemistry 2 in Chemistry at University of Houston.


Reviews for Thermodynamics


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 04/15/16
Thermodynamics and Thermochemistry Summary Terms and definitions:   H (enthalpy) is the change in heat at a constant temperature 1. If delta H is positive heat is taken away from the surroundings and it is  considered exothermic 2. I delta H is negative, heat is given/added to the surroundings and I is  considered exothermic  S (entropy) is the change in randomness or how spontaneous it is 1. If S > 0, then there is an increase in randomness. This is thermodynamically  favored 2. If S < 0, then there is a decrease in randomness. This is NOT  thermodynamically favored  G (Free Energy change) – relates to ideal work from reaction and it CANNOT be  measured. 1. If G > 0, then it is non­spontaneous and needs an external driving force 2. If G < 0, then it is spontaneous and does not need an external driving force Standard State:  Is a state that is defined when a pure solid, liquid, or gas is at 1 atmosphere  pressure and 1M concentration.  Laws of thermodynamics:  First Law of Thermodynamics: Law of Conservation of Energy. For review purposes, the law of conservation is that: energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another.  Second Law of thermodynamics: Spontaneous processes lead to increase of entropy of  the universe  Third Law of Thermodynamics: Only a perfect crystal at 0 kelvin has zero entropy Entropy Relationships 1. Gases have higher entropy than liquids, which have a higher entropy than solids, so g>l>s 2. Mixtures > pure substances, except when going down in phase 3. Between substances in the same phase: If there are more atoms and/or the substance is  heavier, the greater the entropy is 4. For reactions in the same phase if more molecules are made, the higher the entropy 5. Increase in temperature = increase in entropy, decrease in pressure = increase in entropy Relationship between Entropy, Enthalpy, and Free Energy                + + positive at low temp, negative at high temperature + ­ always positive ­ + always negative ­ ­ negative at low temp, positive at high temperature                                        >>1 very negative >1 negative 1 0 <1 positive <<1 very positive Equations:  H reaction = [H(pfoducts)] – [H(reactfnts)] H  f  elements in natural state = 0  S = [S(products)] – [S(reactants)] reaction  f f  G reaction = [G(pfoducts)] – [G(reactfnts)] G  f  elements in natural state = 0 For Entropy  H = ­TS(surroundings)  S(universe) = S(reaction) + S(surroundings)  G = ­TS(universe) For Delta G:  G = H ­ TS (T in K; get ALL quantities in either Joules or Kilojoules)  G = ­RTlnK (R = 8.314; T in K; G in JOULES)  (G refers to energy change going from all things in standard state to equilibrium)  G = G + RTln Q  (G refers to energy change for ANY stage of reaction)


Buy Material

Are you sure you want to buy this material for

0 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Amaris Trozzo George Washington University

"I made $350 in just two days after posting my first study guide."

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.