Monday, February 5, 2007

Notes from workshop 1

First, our icebreaker.

We're all underclassmen
We're all sceince-y
We're all in freshmen housing
We're all on facebook
We're all jealous that it's 77 degrees in California.

Now the meat of the workshop

Work done on the system + heat absorbed on the system, is the 1st law of thermodynamics.

ΔE=q+w

In an exothermic reaction the system will lose energy but temperature will rise, because your thermometer measures the released heat.

If work is done by system, the heat is negative (there is a loss of heat) Imagine exercising, you lose heat through your skin.

ΔH=q under constant pressure

Hess' law
ΣΔH(total) = ΣΔH(products) - ΣΔH(reactants)

q=mCΔT

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