THM 110 · Basic ThermodynamicsSession 2 · Hour 1 · Heat and workInstructor cue 양쪽 문.90 minNow Open · 5 min left · next Demo한ENScriptBodyClearHour 1Heat and workHour 2The working fluidHour 3EnthalpyHour 4The first law on paperworkWURKA force that walks a path. Energy that leaves as motion.heatHEETEnergy that crosses a wall because of a temperature gap.first lawFURST lawEnergy is not born. It is not killed. It changes clothes.enthalpyEN-thal-peeStress en. Internal energy plus the push of pressure and volume.What crossed the wall?0/4Energy that crossed because of a gap in T.HeatWorkInternal energyEnthalpyEnergy that left as motion.HeatWorkInternal energyEnthalpyWhat stayed inside.HeatWorkInternal energyEnthalpyU plus the push of P and V.HeatWorkInternal energyEnthalpyCheckQ minus W is the change in U. Write the sign. One closed system. One line.