Entropy

At the end of this activity, students should be able to:
– use the laws of probability to explain the spontaneity of chemical and physical changes
– explain the concept of entropy as a measure of disorder at the molecular level
– discuss the entropy changes caused by chemical and physical processes
– use standard entropy values to calculate standard entropy changes for reactions
– explain how the entropy change of a system is affected by temperature, phase change or the stoichiometry of gaseous reactions
– use enthalpy change and temperature to determine the enthalpy change for the surroundings
– use a calculated total entropy change to predict whether a reaction is spontaneous or not.