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Heat Flow vs. Cash Flow: A Banking Analogy

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Charles M. Wynn

Eastern Connecticut State University, Willimantic, CT 06226-2295

J. Chem. Educ., 1997, 74 (4), p 397

DOI: 10.1021/ed074p397

Publication Date (Web): April 1, 1997

Section:

History, Education, and Documentation

Abstract

An analogy is drawn between the withdrawal of money from an automated teller machine (ATM) and an exothermic chemical reaction. In the analogy the amount in an individual’s account is regarded as the system and the money withdrawn is regarded as part of the surroundings. Diagrams are used to present the analogy. An analogy can be drawn also between a deposit into an account and an endothermic chemical reaction.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Feature):

Applications and Analogies

Keywords (Pedagogy):

Analogies / Transfer

Keywords (Subject):

Thermodynamics

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Energy as Money, Chemical Bonding as Business, and Negative ΔH and ΔG as Investment
Evguenii I. Kozliak
Journal of Chemical Education2002 79 (12), 1435
- Energy as Money, Chemical Bonding as Business, and Negative ΔH and ΔG as Investment
  Evguenii I. Kozliak
  Journal of Chemical Education2002 79 (12), 1435
  A simple analogy is suggested illustrating the thermodynamic sign convention and the significance of the negative sign of ΔH and ΔG on spontaneity for general or introductory chemistry students. Enthalpy or energy is associated with money, and atoms or ...
  Abstract | Hi-Res PDF | PDF w/ Links
Understanding of Elementary Concepts in Heat and Temperature among College Students and K-12 Teachers
Paul G. Jasien and Graham E. Oberem
Journal of Chemical Education2002 79 (7), 889
- Understanding of Elementary Concepts in Heat and Temperature among College Students and K-12 Teachers
  Paul G. Jasien and Graham E. Oberem
  Journal of Chemical Education2002 79 (7), 889
  Ideas associated with heat and temperature are widely known to cause difficulties for students. This may be due to the use of these terms in colloquial speech and also to students' interpretations of everyday experiences. We report here the results of an ...
  Abstract | Hi-Res PDF | PDF w/ Links