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ERIC Number: EJ1228032
Record Type: Journal
Publication Date: 2019-Sep
Pages: 9
Abstractor: As Provided
ISSN: ISSN-0021-9584
Development of the Enthalpy and Entropy in Dissolution and Precipitation Inventory
Abell, Timothy N.; Bretz, Stacey Lowery
Journal of Chemical Education, v96 n9 p1804-1812 Sep 2019
The Enthalpy and Entropy in Dissolution and Precipitation Inventory (E2DPI) has been developed to measure student understanding of the dissolution of ionic solutes, aqueous precipitation reactions, and the enthalpy and entropy changes that accompany these processes. The E[subscript 2]DPI was designed using a mixed-methods protocol, such that the questions on the instrument were grounded in the reasoning and explanations offered during the semi-structured interviews with general chemistry and physical chemistry students. The concept inventory was administered to general chemistry (n = 383), physical chemistry (n = 10), and biophysical chemistry students (n = 43) at one institution. The inventory was also administered at a second institution to students in a postorganic General Chemistry II course (n = 160). The validity and reliability of the data generated from the E[subscript 2]DPI were assessed using both qualitative and quantitative data. Some of the misconceptions assessed by the instrument and data indicating the prevalence of these ideas are presented.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A