Professor Dave Explains
IIT/JEE Chemistry Practice #27: Resonance Energy
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Practice Problem: Energy Diagrams
For this one we need to understand what the different parameters on an energy diagram correspond to. Check out my tutorial on this subject in the general chemistry playlist if it seems fuzzy!
Professor Dave Explains
IIT/JEE Chemistry Practice #25: Enthalpy of Formation
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
Practice Problem: Hess's Law
If we want to find out some information regarding the enthalpy change of a reaction, but we don't want to perform the reaction, we can use Hess's law, which allows us to manipulate thermochemical data for related reactions. Let's...
Professor Dave Explains
Practice Problem: Lattice Energy and Ionic Bond Strength
We know that within an ionic compound, the ions are held together by ionic bonds. What is the strength of those bonds, and what is the lattice energy possessed by the entire lattice? Can we compare two compounds and say which has the...
Professor Dave Explains
Practice Problem: Calculating Free Energy Change
We know that the free energy change associated with a process will tell us whether it is spontaneous or not. And we also know that this depends on the change in enthalpy and the change in entropy for that process, as well as the...
Professor Dave Explains
Practice Problem: Enthalpy of Vaporization
Can we do stoichiometry regarding phase changes? Sure! If we know how many moles of a substance we have, and the energy associated with each mole of that substance undergoing a particular phase change, we can get the energy associated...
Curated Video
Measuring Entropy Changes through Calorimetry Experiment
The video discusses how to measure entropy change in chemical reactions through an experiment using calorimetry. It explains the concepts of exothermic and endothermic reactions and how to calculate heat energy change. The equipment used...
msvgo
Adsorption
It defines adsorption, adsorbate and adsorbent. It distinguishes adsorption and absorption. It explains the mechanism and types of adsorption.
Catalyst University
General Chemistry | Enthalpy of Reaction (ΔH_rxn) [Example 1]
Here is one example in which we calculate enthalpy of reaction (ΔH_rxn).
Catalyst University
Physical Chemistry: Entropy, Enthalpy Calculation
Physical Chemistry: Entropy, Enthalpy Calculation
msvgo
Enthalpies for different types of reactions
It describes the standard enthalpy of combustion. It explains the enthalpy of atomisation and bond enthalpy and discusses the enthalpy of solution and lattice enthalpy.
Catalyst University
General Chemistry | Heat Capacity (q=smΔT) [Example 1]
Here, we perform a sample calculation for heat capacity in which we solve for heat (q) using q=smΔT.
Catalyst University
Partial Derivatives: Total Differentials
Partial Derivatives: Total Differentials
msvgo
Enthalpy Change in rate of H of a Reaction - Reaction Enthalpy
It defines the term reaction enthalpy,expression for the enthalpy change, standard enthalpy of reactions and formation as well enthalpy change during phase transformations.
Professor Dave Explains
IIT/JEE Chemistry Practice #26: Enthalpy of Combustion
Practice REAL problems from actual past IIT/JEE exams with Professor Dave!
Professor Dave Explains
The Laws of Thermodynamics, Entropy, and Gibbs Free Energy
We've all heard of the Laws of Thermodynamics, but what are they really? What the heck is entropy and what does it mean for the fate of the universe? How does soap work?! So many questions answered in this clip! Enjoy!
Professor Dave Explains
Thermochemistry: Heat and Enthalpy
What is heat? It's not just a movie with Pacino and DeNiro. Learn all about heat, and more importantly, enthalpy! Energy exchange is a big part of chemistry.
Professor Dave Explains
Hess's Law and Heats of Formation
How can we calculate the enthalpy change of a reaction without doing it? There are two easy ways! This is how we can make sure a reaction won't explode in our faces!
Khan Academy
Hess's Law and Reaction Enthalpy Change, Chemistry
Sal introduces students to Hess's Law. The law states that a process's energy change is independent of how we get from one state to another. He sets up a series of reactions and solves them to illustrate the principles behind Hess's Law....
Khan Academy
Heat of Formation, Thermodynamics, Chemistry
In this chemistry video, Sal takes a closer look at what happens to the change in enthalpy during a chemical reaction. He points out that, given constant pressure, the enthalpy change becomes the heat added to the system at that constant...
Khan Academy
Enthalpy, Thermodynamics, Chemistry
Sal introduces students to the term "enthalpy" in this chemistry video. He defines enthalpy as: the internal energy, plus the pressure times the volume found in a system. He constructs a PV diagram to illustrate this point.