Today in class students were able to gain an understanding of how energy works in a chemical reaction. We looked at the concept of enthalpy today and how to calculate the change in enthalpy that occurs in a chemical reaction. The process that we learned involved breaking a chemical reaction down into its parts and to figure out the heats of formation for the parts and then add those together. This was called Hess' Law. We looked at a couple of examples today. We will continue this on Tuesday. This was all included in a new powerpoint called Enthalpy and it is found in the Heat folder of the Physical Science 20 course notes link. On Tuesday, we will finish the last example and then have time to work on Assignment H4. Students are to begin this assignment on the weekend. Give the first 4 questions a try.
Remember that we will not have class on Monday due to the science department PD day. Have a great weekend everyone.
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