The First Law: Work, Heat and Thermochemistry
摘要
This chapter presents the first lawFirst law of thermodynamics in terms of heatHeat exchange and workWork. Internal energyInternal energy, heat capacityHeat capacity and enthalpyEnthalpy are defined and enthalpyEnthalpy changes during reactions and phase changesPhase changes are discussed. Latent and sensible heatSensible heat are introduced, and adiabaticAdiabatic processes are related to the atmospheric lapse rateLapse rate, potential temperature, and the geothermal gradientGeothermal gradient.