2.State(状态)and state function(状态函数) State:the comprehensive condition of a system. State function:physical quantities depicting the property of a system.(e.g.,p,V'T,M...) 3.Process(过程)and Path(途径)： Process:A sequence of interdependent and linked procedures which,at every stage,consume one or more resources to convert inputs into outputs.These outputs then serve as inputs for the next stage until a known goal or end results is reached.. Path(途径)：the sum of the processes for the system from an initial state to a final state. 2. State (状态) and state function（状态函数） State：the comprehensive condition of a system. State function：physical quantities depicting the property of a system. (e.g., p,V,T,M…) 3. Process(过程) and Path(途径）: Process: A sequence of interdependent and linked procedures which, at every stage, consume one or more resources to convert inputs into outputs. These outputs then serve as inputs for the next stage until a known goal or end results is reached.. Path(途径) : the sum of the processes for the system from an initial state to a final state