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College Science Software BundleCollege Science Bundle: The three college level courses - General Chemistry, General Physics (calculus) and Organic chemistry, bundled together in one package.College Science Software Bundle

High School Science Bundle: The two high school level courses- Introductory Chemistry and General Physics (non- calculus), bundled together into one package. This bundle is very popular with High School and Home School students.Chemistry and Physics Software for High School and Home School

Dr. Bryan Sanctuary

Bryan Sanctuary, Professor of Chemistry at McGill University (Montreal, Canada) as well as president of MCH Multimedia. | | and co- author of Physical Chemistry - Laidler, Meiser, Sanctuary. You can also read about Quantum mechanics and Physical Chemistry on Bryan's personal blog:

Physical Chemistry Ebook does not work on Windows 8: Solution

Windows 8 has upgraded to  .Net 4.0. The ebook needs the older version of .Net to be installed, to work  on windows 8. Our development team is working to upgrade the installer. We hope to have the upgrade out soon.

In the meantime, here are a few steps that will help you resolve the issue

  1.  Upon download of MCHPDFViewer.exe  you get a warning that the file “is not commonly downloaded and may harm the computer”. You can ignore and ‘View Downloads’
    Error 1

  2. In the “Downloads” folder (or where you downloaded the file), double-click MCHPDFViewer.exe . You will get an error that mentions that the application is blocked.

    Physical Chemistry ebook on windows 8 -2

  3. In order to unblock the application, right-click the executable and select “Properties”. Within the Properties dialogue, select “Unblock” and press the OK button.
    Physical Chemistry ebook on windows 8 - 3
  4. Now that the installer is unblocked, we can double-click the application to start installing. You will receive another error message indicating that the program requires .NET version 2.0.
    Physical Chemistry ebook on windows 8 - 4Selecting “Yes” from dialogue brings you to the .NET 4.0 web installer which is not compatible with version 2.0.
  5. In order to download .NET 2.0 visit the control panel and select “Programs” > “ Turn Windows Features on or off”. From within the window that opens, select to install “.NET framework 3.5 (includes .NET 2.0 and 3.0)”
    Physical Chemistry ebook on windows 8 - 5
    After selecting .NET 3.5 and pressing OK, the feature is installed.
  6. You can now double-click the MCHPDFInstaller.exe and it installs successfully.
  7. You will now be prompted to launch your ebook with your serial # and should have no further problems with running the ebook on the windows8 OS.


The half-life of beer calculated with chemical kinetics

With the holiday season coming up I thought discussing the half-life of beer could be helpful to some

Earlier I had written more about the Chemical Kinetics of getting Sober, but in this clip I’m teaching zeroth order chemical kinetics and the concept of half life. The multimedia is is taken from Chapter 9, section 9.4 of the Physical Chemistry textbook by Lailder, Meiser and Sanctuary.

Steps in chemical reaction in chemical kinetics

In this clip I am showing chain reactions, in a class demo, using multimedia  from the latest edition of  the  Physical Chemistry texbook by Laidler, Meiser and Sanctuary.  The steps discussed in this clip are

  1. Initiation
  2. Propagation
  3. Inhibition
  4. Termination

Chemical Kinetics from chapters 9 and 10 contain this multimedia clip that I use in class to show the steps of the chain reaction.  This is found on page 10-9 of the text and is also found in the Multimedia table of contents on the side bar.

Chemical potential of a compound

This clip from the Physical Chemistry book explains how concentration changes with pressure. Changing the pressure on a gas can change the number of moles.

This leads us to the concept of the chemical potential: each compound has a potential to react and has its own molar Gibbs free energy. The greater the chemical potential is negative (at constant T and P) the greater the potential to react and minimize the Gibbs energy for the whole reaction.

Ratio of forward and reverse rate constants is equal to the equilibrium constant

In class, I used the animation in chapter 4- Approach equilibrium (page 4.28 of my Physical Chemistry book), to show that the ratio of the forward and reverse rate constants is equal to the equilibrium constant. Continue reading

Try our bestselling undergraduate Physical Chemistry courseware

Thermodynamics Module - Physical Chemistry
Thermodynamics module
Chapters 1 to 6 of Physical Chemistry - Laidler, Meiser, Sanctuary

Includes multimedia that opens on relevant pages and allows the student to visualize many of the concepts by varying parameters and plotting different graphs. Things students often have difficulty with, such as isothermal, isobaric, isochoric and adiabatic process, are clearly visualized.

Get it from: Thermodynamics Module - Physical Chemistry

Physical Chemistry - Laidler, Meiser, Sanctuary
Physical Chemistry textbook
by Laidler, Meiser, Sanctuary

This popular Physical Chemistry text book is now available in electronic format. We have preserved much of the material of the former hard copy editions, making changes to improve understanding of the concepts in addition to including some of the recent discoveries in physical chemistry. Many chapters have new sections and the coverage of several chapters has been greatly expanded.

Get it from: Physical Chemistry - Laidler, Meiser, Sanctuary

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