版权所有：华东理工大学物理化学教研室 10 Introduction Physical chemistry is the branch of chemistry that develops principles of the subject. Its concepts are used to explain observations on the physical and chemical properties of matter. Physical chemistry is also essen-tial for developing and explaining the modern techni-ques used to determine the structure and properties of matter, such as new s y n t h e t i c m a t e r i a l s a n d b i o l o g i c a l macromolecules. In this section, we will concentrate on concepts of: • Matter and Energy • System and its surroundings • State and Equations of states版权所有：华东理工大学物理化学教研室 10 Introduction Physical chemistry is the branch of chemistry that develops principles of the subject. Its concepts are used to explain observations on the physical and chemical properties of matter. Physical chemistry is also essen-tial for developing and explaining the modern techni-ques used to determine the structure and properties of matter, such as new s y n t h e t i c m a t e r i a l s a n d b i o l o g i c a l macromolecules. In this section, we will concentrate on concepts of: • Matter and Energy • System and its surroundings • State and Equations of states