In chemistry, the standard molar entropy is the entropy content of one mole of pure substance at a standard state of pressure and any temperature of interest. These are often (but not necessarily) chosen to be the standard temperature and pressure. The standard molar entropy at pressure = is usually given the symbol S°, and has units of joules per mole per kelvin (J⋅mol−1⋅K−1). Unlike standard enthalpies of formation, the value of S° is absolute. That is, an element in its standard state has a definite, nonzero value of S at room temperature. The entropy of a pure crystalline structure can be 0 J⋅mol−1⋅K−1 only at 0 K, according to the third law of thermodynamics. However, this assumes that the material forms a 'perfect crystal' without any residual entropy. This can be due to crystallographic defects, dislocations, and/or incomplete rotational quenching within the solid, as originally pointed out by Linus Pauling. These contributions to the entropy are always present, because crystals always grow at a finite rate and at temperature. However, the residual entropy is often quite negligible and can be accounted for when it occurs using statistical mechanics. (Wikipedia).
Molar Volume Calculated Two Different Ways
Mr. Swarthout shows you two ways to calculate the volume of one mole of a gas at standard temperature and pressure. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemistry Videos
Shows you how to calculate that the volume of one mole of an ideal gas at standard temperature and pressure is equal to 22.4 liters. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemistry Videos
This video shows you how to calculate the molar mass for several compounds using their chemical formulas. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemistry Videos
Molar Conversion: Number of Particles to Volume of a Gas
Shows how to use molar conversions to convert from the number of particles in a gas and the volume of that gas at standard temperature and pressure (STP). You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemistry Videos
Molar Conversions: Volume of a Gas to Number of Particles
Shows how to use molar conversions to convert from the volume of a gas at standard temperature and pressure (STP) to the number of particles in the gas. You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemistry Videos
Molar Conversions: Volume of a Gas to Grams of a Gas
Shows how to use molar conversions to convert between grams of a gas to volume of a gas a standard temperature and pressure (STP). You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemistry Videos
Molar Conversion: Grams of Gas to Volume of a Gas
Shows how to use molar conversions to convert between grams of a gas to volume of a gas a standard temperature and pressure (STP). You can see a listing of all my videos at my website, http://www.stepbystepscience.com
From playlist Chemistry Videos
How To Calculate The Molar Mass of a Compound - Quick & Easy!
This chemistry video tutorial explains how to calculate the molar mass of a compound. It contains plenty of examples and practice problems. General Chemistry 1 Review: https://bit.ly/3DNmZqb PDF Worksheet - 160 Questions: https://bit.ly/37SVLn6 New Chemistry Video Playlist: https://ww
From playlist New AP & General Chemistry Video Playlist
Physical chemistry is the study of macroscopic, and particulate phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, #thermodynamics, #quantum chemistry, #statistical mechanics, analytical dynamics and chemical eq
From playlist Physical Chemistry
Thermodynamics and Chemical Dynamics 131C. Lecture 15. Getting to Know The Gibbs Energy.
UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 15. Thermodynamics and Chemical Dynamics -- Getting to Know The Gibbs Energy -- View the complete course: http://ocw.uci.edu/courses/chem_131c_thermodynamics_and_chemical_dynamics.html Instructor: Reginald Penner, Ph.D.
From playlist Chemistry 131C: Thermodynamics and Chemical Dynamics
Gibbs Free Energy, Entropy, Thermochemistry Question, Percent Composition, Bohr's Atomic Model
We will cover how to find the change in gibbs free energy, enthalpy and the entropy of the system and the universe. We also go over an advanced thermochemistry question, how to find the identity of an unknown compound when given percent composition by mass of each element and how to draw b
From playlist General Chemistry 2: What You Need to Know
Calculating the change in entropy and enthalpy of reactions using standard values
If you use tables of standard formation enthalpy and standard molar entropy then you can calculate the changes in enthalpy and entropy for any reaction you choose.
From playlist Materials Sciences 101 - Introduction to Materials Science & Engineering 2020
General Chemistry 2 Review Study Guide - IB, AP, & College Chem Final Exam
This general chemistry 2 final exam ap, ib, & college chem review video tutorial contains many examples and practice problems in the form of a multiple choice practice test. It has about 40 out of 150 test bank problems in the form of a standardized final exam that will help study for yo
From playlist New AP & General Chemistry Video Playlist
Thermodynamics and Chemical Dynamics 131C. Lecture 17. Finding Equilibrium
UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 17. Thermodynamics and Chemical Dynamics -- Finding Equilibrium -- View the complete course: http://ocw.uci.edu/courses/chem_131c_thermodynamics_and_chemical_dynamics.html Instructor: Reginald Penner, Ph.D. License: Cre
From playlist Chemistry 131C: Thermodynamics and Chemical Dynamics
Thermodynamics and Chemical Dynamics 131C. Lecture 04. Entropy.
UCI Chem 131C Thermodynamics and Chemical Dynamics (Spring 2012) Lec 04. Thermodynamics and Chemical Dynamics -- Entropy -- View the complete course: http://ocw.uci.edu/courses/chem_131c_thermodynamics_and_chemical_dynamics.html Instructor: Reginald Penner, Ph.D. License: Creative Common
From playlist Chemistry 131C: Thermodynamics and Chemical Dynamics
General Chemistry: Lec. 15. One Midterm Problem, Free Energy & Equilibrium
UCI Chem 1B General Chemistry (Spring 2012) Lec 15. General Chemistry -- One Midterm Problem, Free Energy and Equilibirum -- View the complete course: http://ocw.uci.edu/courses/chem_1b_general_chemistry.html Instructor: A.J. Shaka. Ph.D. License: Creative Commons BY-NC-SA Terms of Use:
From playlist Chemistry 1B: General Chemistry
Chemistry - Atoms, Molecules, and Ions (5 of 23) Molar Mass
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain and gives examples of what is a molar mass.
From playlist Michel van Biezen: CHEM - Introduction
Thermodynamics depends on enthalpy and entropy. Gibbs free energy is a convenient quantity since it combines both! Whenever we talk about energy being minimized to determine which reaction will be favorable (spontaneous) we can use Gibbs free energy for these evaluations.
From playlist Materials Sciences 101 - Introduction to Materials Science & Engineering 2020
General Chemistry 1B. Lecture 9. Thermodynamics: Second & Third Law, Part III
UCI Chem 1B General Chemistry (Winter 2013) Lec 09. General Chemistry Thermodynamics: Second & Third Law, Part 3 View the complete course: http://ocw.uci.edu/courses/chem_1b_general_chemistry.html Instructor: Donald R. Blake, Ph.D. Recorded on February 12, 2013. License: Creative Commons
From playlist General Chemistry 1B
Chemistry - Solutions (13 of 53) Expressing Concentrations: Molality
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the molality of a 40% (W/W) solution or ethanol and water.
From playlist CHEMISTRY 19 SOLUTIONS