Chem Final Cheat Sheet and Study Sheet

Chem Final Cheat - Introductory Chemistry I Draper General Knowledge Isentropic process where entropy is constant Isochoric constant V Isobaric

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Introductory Chemistry I – Draper General Knowledge Isentropic - process where entropy is constant Isochoric - constant V Isobaric - constant P Adiabatic - q=0 Isothermal- constant T Isotherma l- ΔE=O, w =-q for an ideal gas, work is the area under a PV graph, Adiabatic = q=0, ΔE=w, w=-Pext(dV), ΔH=ncpΔT, ΔE=w=ncvΔT Gibbs Free energy - predicts the feasibility of a process in a system without explicit calculations for the surrounding Entropy of a system - S=KlnΩ where K is boltzamns constants and Ω is the number of microstates Δ S (constat T) ΔS=nRln(V2/V1) ΔSfusion = ΔHfus/Tf ΔS (isochoric) = ncvln(T1/T2) ΔS (pressure) = ncpln(T1/T2) Always change in entropy for constant pressure is greater than change in volume because cp is >cv For irreversible expansion of an ideal gas ?????look in book ΔG=ΔH-TΔS For element already at standard state then gibbs free enrgy is zero ΔG usually does not depend on temperature Concepts Midterm 1 Given Chemical symbols write number of protons, neutrons, etc Atomic Number= number of protons Charge is number of protons-number of neutrons Given mass relative to Carbon-12 calculate mass #, atomic #, and identify element Given elements balance chemical reaction Given moles and chemical equation find number of moles of product Coloumb stabilization energy (taken off) Lewis Dot Structure
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This test prep was uploaded on 04/09/2008 for the course CHEMISTRY 030.101 taught by Professor Draper during the Fall '06 term at Johns Hopkins.

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Chem Final Cheat - Introductory Chemistry I Draper General Knowledge Isentropic process where entropy is constant Isochoric constant V Isobaric

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