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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 54, Number 6
JKCSEZ 54(6)
December 20, 2010 

Pre-service Chemistry Teachers' Misconceptions about Motions of Molecular Gases: Translational, Vibrational and Rotational Motion

기체 분자의 운동 방식에 관한 예비 화학 교사들의 오개념: 병진, 진동 그리고 회전 운동
Young Jin Seo, Jin Kwon Choi, Hee K Chae*

서영진, 최진권, 채희권*
기체 분자의 운동 방식, 예비 화학 교사, 병진 운동, 진동 운동, 회전 운동, 오개념 , Motions of molecular gases, Pre-service chemistry teacher, Translational motion, Vibrational motion, Rotational motion,

In this study, we conducted a textbook analysis and a conceptual test in order to investigate misconceptions of preservice chemistry teachers in understanding motions of molecular gases. As a result, we found out that many of the general chemistry textbooks not only introduce motions of molecular gases by explaining basic conceptions and using simple models, but also omit the explanation on center of mass when dealing with rotational motion. The physical chemistry textbooks, however, mainly approach motions of molecular gases in terms of spectroscopy and use various models to explain more intensified concepts, referring the center of mass in rotational motions. Meanwhile, pre-service chemistry teachers' confidence and understanding in the motions of molecular gases were very low and pre-service teachers also had many misconceptions about them. We believe this is because they had a tendency to depend largely on their intuition based on the pre-conceptions and the visual materials in the textbooks.

799 - 808
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