This semester, after 14 weeks of lecture and tutorial sessions as well as an open book test, more that a hundred students taking Principles of Chemistry should have been ready for the next real test that is final examination. As a lecturer (teacher precisely), I would like to see all of my students come out from the examination hall with a happy face and a big smile just because they sincerely studied and answered the questions with confident.
Sunday, 28 November 2010
Tuesday, 23 March 2010
SCES2324 Petrochemistry Exercise
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Note: The discussion on Exercise 1 will be held on 3 March 2011 (12 - 1 pm). Please get your answers ready. Time table for Exercise 2 will inform later.
Real Gases
Muat turun Slide Kuliah (Download Lecture Slides)
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This topic is discussing on more realistic situation where we can observe the experimental data was deviated from perfect gas law. There were situations or parameters that can be manipulated in order to "revise" the prefect gas equation and fit with the experimental observation. In this topic, CO2 has been chosen as an example to explain the intermolecular interaction, compression factor, virial coefficient, condensation and critical constant. These are resulting from the situation where we have a trapped gas in a container with variable molar volume and pressure at determined temperatures.
In more advanced approach, Van der Waals was rather improved the perfect gas equation by applying smaller volume. Hence, affect the frequency and force of collision of the gas molecules. The redefine equation also bring about the prediction of critical compression factor of a gas.
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