2013-2-27 Basic concepts:System Classification 1+2+3Adiabatic closed system Adiabatic system:betweer there are no exchange of eat. Basic concepts:System Classification 1+2+3+4 Isolated system between a system and exchanges of both energy(heat and work)and mass 202013-2-27 20 1 2 4 3 Mass, M Work, W heat , Q 1+2+3 ⇒ Adiabatic closed system Adiabatic system: between a system and surroundings, there are no exchange of heat. 39 Basic concepts: System Classification 1 2 4 3 Mass, M Work, W heat , Q 1+2+3+4 ⇒ Isolated system： between a system and surrounding, there are no exchanges of both energy (heat and work) and mass 40 Basic concepts: System Classification