英文原文THERMODYNAMICSANDREFRIGERATIONCYCLESTHERMODYNAMICSisthestudyofenergy,itstransformations,,,,,thegreateritsentropy;(internal)energyiscausedbythemotionofmoleculesand/(PE)iscausedbyattractiveforcesexistingbetweenmolecules,ortheelevationofthesystem.(1)wherem=massg=elerationofgravityz=icenergy(KE)istheenergycausedbythevelocityofmoleculesandisexpressedas(2)(atomic)energyderivesfromthecohesiveforcesholdingprotonsandneutronstogetherastheatom’
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