Abstract: The Physical Chemistry I course presents significant challenges in both teaching and learning due to its extensive knowledge points, highly theoretical content, abstract concepts, numerous complex formulas, and intricate derivations. The strong interconnections and logical relationships between these knowledge points further compound these difficulties. As a structured semantic knowledge base, knowledge graphs can systematically organize, network, and visually represent the course content along with its inherent correlations. This approach effectively addresses students' personalized learning needs in today's fragmented learning environment. The integration of knowledge graphs into Physical Chemistry I course development substantially enhances both instructional effectiveness and learning outcomes. Drawing from the teaching team's practical experience, this paper outlines the process of constructing the knowledge graph for this course.

Key words: Knowledge graph, Physical chemistry, Construction, Problems