Monday, Feb7

Regular and Honors Chemistry -
Starter -Using the following standard enthalpies of formation (∆Hf) determine the change in enthalpy(∆H) for the reaction...
2H2S (g) + 3 O2 (g) --> 2 H2O (l) + 2 SO2 (g)
∆Hf of H2S (g) = -20.1 kJ/mole
∆Hf of O2 (g) = 0.0 kJ/mole
∆Hf of H2O (l) -241.8 kJ/mole
∆Hf of SO2 (g))= -296.1 kJ/mole

Corrected 3.5 Worksheet Hess' Law

Lecture: We went through the power point #4 in third term. We talked about activation curves, phase diagrams, and Le Chatlier's Principle.

Homework: 3.7 Phase Diagrams

Summary: Given ∆H = +345kJ T= 350 K and ∆S = +0.183kJ/K Find ∆G =
Then tell what the ∆G, ∆H, and ∆S mean.