The Qualitative Analysis to the Change of Internal Energy and Quantity of Heat in Many-sided Process
Zhao Xiao-yu · Journal of Western Chongqing University · 2003
Any curve in the picture P-V stands for a quasi-static process in the system .The positive and negative of work are easy to be got quasi in the picture, while the first law of thermodynamics and characteristic equation of process are generally needed when the change of internal energy and absorption of heat and exothermic are analyzed, which is very complicated. The essay, using mathematical knowledge combined with physical pictures, give a simple qualitative judgement and can draw a conclusion quickly and accurately.