0th law S.J.T.U. Phase Transformation and Applications Two systems in thermal equilibrium with a third system a 绝热壁 are also in thermal equilibrium B with each other. 同时与同一物体C达到热平衡的不同物 绝热壁 B 体A和B具有相等的温度。 绝热壁 Principle of measuring Temperature! B Thermometer->the third system 图1-5热力学第零定律 SJTU Thermodynamics of Materials Spring 2010 ©X.J.Jin Lecture 1 First law I 13/38Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2010 © X. J. Jin Lecture 1 First law I 13/38 0 th law • Two systems in thermal equilibrium with a third system are also in thermal equilibrium with each other. Principle of measuring Temperature! Thermometer -> the third system 同时与同一物体C达到热平衡的不同物 体A和B具有相等的温度