Thermodynamics/Experts

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2011-12-08 Entalphy:

I'm trying to convince you that you can only measure differences in both enthalpy and potential energy.  In the equation PE = mgh, PE changes as a function of h.  If you have an object setting on the floor

2011-12-07 Entalphy:

Total enthalpy of a system cannot be measured.  Only differences in enthalpy can be measured.  Therefore, you have to have some starting point and that is defined as zero for elements.  It's like electrical

2011-11-12 Energy:

1) Everything above absolute zero has heat energy that shows up as the movement of the atoms in the material  2) Kinetic energy is the energy of motion and potential energy is the energy of position  3

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