Undergraduate Research Panel AIChE Mentor Group Seminar Undergraduate Research Panel AIChE will be hosting an undergraduate research seminar followed by a panel Tuesday, Oct. 9th at 7 PM in 1024 Chem Annex Prof. Paul J.A. Kenis Department Head - ChBE Uzoma Nwabara 3rd year PhD Student Kenis Group Arwa Zahid Senior Undergraduate Kenis Group RSVP Link: go.illinois.edu/AichePaneL Email Shawn (xunlu1@illinois.edu) with questions

Office Hours 3014 Chemistry Annex decoste@illinois.edu 11am-12pm Mondays and Wednesdays (after lecture) 10-11 am Tuesdays and 1-2 pm Thursdays By appointment; open-door policy

Web Site https://chemistry.illinois.edu/clc OWL Lon-Capa HW assignments Quizzes Lecture videos Lecture Slides Contact information, announcements, gradebook, weekly assignments.

Don’t forget… Textbook Read Do text homework

Three Big Topics Stoichiometry: information on “what” happens; allows us to determine amounts of reactants and products. Thermodynamics: information on “why” reactions happen; allows us to make predictions about whether a reaction will occur. Kinetics: information on “how” reactions happen (mechanisms); relates to the speed of reactions.

“Ball on a Hill”

Some Big Ideas Low energy  low in potential energy  more stable. If a system absorbs energy, the natural tendency is to release it. That is, achieving low potential energy is “natural”. Ground state preferred over excited state. Energy is converted from one form to another but is NOT created nor destroyed. First law of thermodynamics. Energy is a state function (heat and work are not).

Thermodynamics vs. Kinetics

Questions To Consider How can we predict which reactions are spontaneous (and what do we mean by spontaneous)? How can we provide support (mathematical and qualitative) for observations? Ice cream melts Coffee cools Why do systems reach equilibrium? That is, why doesn’t the ball go “all the way down the hill”?

Clicker Question The freezing of water is an ________ process. a) exothermic b) endothermic c) I do not know.