Purpose (Il) S.J.T.U. Phase Transformation and Applications The science of thermodynamics is concerned with heat and work,and transformations between the two. It is based on two laws of nature,the first and second laws of thermodynamics. By logical reasoning and skillful manipulation of these laws,it is possible to correlate many of the properties of materials and to gain insight into the many chemical and physical changes that materials undergo. SJTU Thermodynamics of Materials Fall 2012 ©X.J.Jin Lecture 1 First law I 5/38Phase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Fall 2012 © X. J. Jin Lecture 1 First law I 5/38 Purpose (II) The science of thermodynamics is concerned with heat and work, and transformations between the two. It is based on two laws of nature, the first and second laws of thermodynamics. By logical reasoning and skillful manipulation of these laws, it is possible to correlate many of the properties of materials and to gain insight into the many chemical and physical changes that materials undergo