CHEM 101DL Lecture Notes - Lecture 3: Calorimetry, Heat Capacity, Joule
4 Apr 2016
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Document Summary
Thermodynamic quantity or function that is a state function and relates mainly to heat flow. Pressure-volume work (p-v work) - the only kind of work produced by a chemical or physical change is the mechanical work associated with a change in volume w = -p v. Magnitude = p x a x h w = -p v. If pv work is the only work that can be done. Magnitude depends on temperature, pressure, and state of the reactants and products. + h system gained heat from surroundings endothermic. Difference between h and e is small because it is p v is the difference and is close to zero. Thermochemical equations balanced chemical equations that show the associated enthalpy change in the formula, h way. Amount of kj of heat produced is the h. Calorimetry the measurement of heat flow (determining h) Calorimeter device used to measure heat flow.
