ABSTRACT
Research and data analysis has been carried out on the concept of temperature and pressure/volume factor equilibrium on prospective teachers. The analysis was conducted on prospective teachers who took six semesters of education (CE18) and four semesters (CE19). This research uses mixed methods by combining qualitative and quantitative methods. The results obtained are 1) there are still many misconceptions that occur, especially the concept of the chemical equilibrium of temperature factors and pressure/volume factors, including prospective chemistry teachers; 2) there is a significant difference between the conceptions that occur between CE19 and CE18 teacher candidates, where the misconceptions formed are more experienced by CE18 teacher candidates who need more time to learn as prospective teachers; 3) requires learning that can explain the understanding of the concept as a whole, especially with the epistemology needed to form a conception, especially prospective teachers.
