版权所有：华东理工大学物理化学教研室 11 0. Basic concepts 0-1 Fundamentals 1). Law: a summary of experience. 2). Hypothesis: a guess at an explanation in terms of more fundamental concepts. 3). Model: a simplified version of the system that focuses on the essentials of the problem.版权所有：华东理工大学物理化学教研室 11 0. Basic concepts 0-1 Fundamentals 1). Law: a summary of experience. 2). Hypothesis: a guess at an explanation in terms of more fundamental concepts. 3). Model: a simplified version of the system that focuses on the essentials of the problem