AbstractThistextintroducesthephysicaleffectsunderlyingheatandmasstransferphenomenaanddevelopsmethodologiesforsolvingavarietyofreal-worldproblems.Itemphasizestheimportanceofconservationprinciples,particularlythefirstlawofthermodynamics,inheattransferanalysis,andhasbeenexpandedtoencompassp