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Chapter 6 A.P. Chemistry. Thermochemistry. CHANGES IN. WHAT THEY BOTH HAVE IN COMMON. CHANGES IN. Total capacity for heat exchange. Internal Energy, E. Total amount of K.E. and P.E. Extensive. Enthalpy, H. State Functions. H = E + PV. q. w. D E.

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  1. Chapter 6 A.P. Chemistry Thermochemistry CHANGES IN... WHAT THEY BOTH HAVE IN COMMON CHANGES IN... Total capacity for heat exchange Internal Energy, E Total amount of K.E. and P.E. Extensive Enthalpy, H State Functions H = E + PV q w DE = + DH = DE + DPV PERSPECTIVE IS IMPORTANT!! heat DH = qp + _ work Flowing in FINDING THIS System Surroundings Flowing out + Done to VS. Calorimetry _ (Everything Else) 1. (Your Focus) Done by q = S.H. m DT w = -PDV 1 mole of a substance formed from it’s elements in std. states 2. Given the eq.’s AN EXPANDING GAS Heats of Formation. HESS’S LAW DH = Snprod.DHf – Snreact.DHf Write your own 3.

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