Tuesday, February 15, 2011
Tues-Day 2
Physics - took the written response part of the Parallel Circuits exam.
Tomorrow, we begin the Magnetism unit!
AP Chem - discussed the Le Chatelier shift (or lack thereof) for each type of kinetic stress; we also discussed the addition of an inert gas to a system at constant T and V (no shift because the partial pressures of any gaseous reactants or products remain the same) as well as adding the inert gas at constant T and P (shift towards the side with more moles of gases).
We then discussed the EXPLANATION of Le Chat's simple rules via kinetic-molecular theory. These problems are much easier when you DRAW a picture of what is occurring in the reaction vessel before AND after the stress is applied; also, putting in effective collision rate numbers that are consistent with your picture leads you to the correct shift prediction.
Keep practicing the problems posted on Blackboard and be sure to go over the notes for the whole unit.
Tomorrow, we begin the Magnetism unit!
AP Chem - discussed the Le Chatelier shift (or lack thereof) for each type of kinetic stress; we also discussed the addition of an inert gas to a system at constant T and V (no shift because the partial pressures of any gaseous reactants or products remain the same) as well as adding the inert gas at constant T and P (shift towards the side with more moles of gases).
We then discussed the EXPLANATION of Le Chat's simple rules via kinetic-molecular theory. These problems are much easier when you DRAW a picture of what is occurring in the reaction vessel before AND after the stress is applied; also, putting in effective collision rate numbers that are consistent with your picture leads you to the correct shift prediction.
Keep practicing the problems posted on Blackboard and be sure to go over the notes for the whole unit.
# posted by C @ 8:56 PM 
