, Volume 24, Issue 2, pp 217–238 | Cite as

Rubber as an Aid to Teach Thermodynamics

The Discovery by a Blind Scientist
  • V. G. GeethammaEmail author
  • V. SampathEmail author
General Article


The behaviour of rubber differs from that of conventional materials. Rubber heats up on stretching and cools on retraction. Also, stretched rubber shrinks on heating (thermoelastic shrinkage) while a stretched metal elongates. The elastic recovery of rubber is due to its tendency to maximize the entropy. The same property also causes the thermoelastic shrinkage. Metallic materials possess energy elasticity, while ideal rubber possesses entropy elasticity. The thermodynamic behaviour of rubber is similar to that of gaseous materials. Hence rubber can be used as an aid for teaching thermodynamics.


Gough–Joule effect rubber thermoelastic entropy elasticity adiabatic isothermal thermodynamics teaching aid strain-induced crystallisation elastomer 


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Suggested Reading

  1. [1]
    J Gough, A Description of a Property of Caoutchouc or Indian rubber; With Some Reflections on the Cause of the Elasticity of this Substance, Memoirs of the Literary and Philosophical Society of Manchester, Vol.1, p.288, 1805.Google Scholar
  2. [2]
    J P Joule, On Some Thermodynamic Properties of Solids, Philosophical Transactions of the Royal Society of London, Vol.49, p.91, 1859.Google Scholar
  3. [3]
    M I Liff, Another Demo of the Unusual Thermal Properties of Rubber, The Physics Teacher, 48, October 2010.CrossRefGoogle Scholar
  4. [4]
    W Thomson (Lord Kelvin), On the Thermoelastic and Thermomagnetic Properties of Matter, Transactions of the Royal Society of Edinburgh, Vol.20, p.57, 1853.Google Scholar
  5. [5]
    J Pellicer et al., Thermodynamics of Rubber Elasticity, J. Chem. Educ., Vol.78, No.2, p.263, 2001.CrossRefGoogle Scholar
  6. [6]
    L R G Treolar, The Elasticity and Related Properties of Rubber, Rep. Prog. Phys., Vol.36, p.755, 1973.CrossRefGoogle Scholar
  7. [7]
    B Schweizer and J Wauer, Atomistic Explanation of the Gough–Joule Effect, The Eur. Phys., J.-B, Vol.23, p.383, 2001.CrossRefGoogle Scholar
  8. [8]
    D Guyomar, et al., Elastocaloric Modelling of Natural Rubber, Appl. Therm. Eng., Vol.57, p.33, 2013.CrossRefGoogle Scholar
  9. [9]
    W Hu, Polymer Physics: A Molecular Approach, Springer Science & Business Media, Technology & Engineering, 2012.Google Scholar
  10. [10]
    V G Geethamma and S Thomas, Why Does a Rubber Ball Bounce?, Resonance, Vol.2, p.48, 1997.CrossRefGoogle Scholar
  11. [11]
    Y Nie, Z Gu, Y Wei, T Hao and Z Zhou, Features of Strain-Induced Crystallization of Natural Rubber Revealed by Experiments and Simulations, Polymer Journal, Vol.49, p.309, 2017.CrossRefGoogle Scholar
  12. [12]
    Peter Atkins, An Introduction to the Laws of Thermodynamics, Oxford University Press, 2010.CrossRefGoogle Scholar
  13. [13]
    K P N Murthy, Josiah Willard Gibbs and his Ensembles, Resonance, p.12, 2007.CrossRefGoogle Scholar
  14. [14]
    J Machta, Entropy, Information, and Computation, Am. J. Phys., Vol.67, p.1074, 1999.CrossRefGoogle Scholar
  15. [15]
    N Gershenfeld, Signal Entropy and the Thermodynamics of Computation, IBM Systems J., Vol.35, Nos.3&4, 1996.Google Scholar
  16. [16]
    G A Lozada, The Hotelling Rule for Entropy-Constrained Economic Growth, Ecological Economics, Vol.133, p.35, 2017.CrossRefGoogle Scholar
  17. [17]
    J B Udgaonkar, Entropy in Biology, p.61, September 2001.CrossRefGoogle Scholar
  18. [18]
    V Kumaran, Josiah Willard Gibbs, Resonance, p.4, July 2007.CrossRefGoogle Scholar
  19. [19]
    J C Binny, Entropy and the Direction of Natural Change, Resonance, p.82, September 2001.Google Scholar
  20. [20]
    L Thims, Thermodynamics nformation Theory: Science’s Greatest Sokal Affair, J. of Human Thermodynamics, Vol.8, No.1, 2012.Google Scholar
  21. [21]
    M Euler, Hooke’s Law and Material Science Projects: Exploring Energy and Entropy Springs, Physics Education, Vol.43, No(1, pp.57–61, 2008.Google Scholar
  22. [22]
    D Roundy and M Rogers, Exploring the Thermodynamics of a Rubber band, Am. J. Phys., Vol.81, No.1, 2013.Google Scholar
  23. [23]
    J Fried, Polymer Science and Technology, Prentice Hall of India, 1999.Google Scholar
  24. [24]
    B Smith, Using Rubber Elastic Material-Ideal Gas Analogies to Teach Introductory Thermodynamics, Part II: The Laws of Thermodynamics, J. Chem. Educ., Vol.79, p.1453, 2002.Google Scholar
  25. [25]
    B Smith, Using Rubber Elastic Material-Ideal Gas Analogies to Teach Introductory Thermodynamics, Part I: Equations of state, J. Chem. Educ., Vol.79, p.1444, 2002.Google Scholar
  26. [26]
    A H Johnstone et al., Misconceptions in School Thermodynamics, Physics Education, p.248, 1977.Google Scholar
  27. [27]
    G Marx, J Ogborn and P Tasnadi, Rubber as a Medium for Teaching Thermodynamics, Eur. J. Phys., p.232, 1984.CrossRefGoogle Scholar
  28. [28]
    W C Galley, Mass-elastic Band Thermodynamics: A Visual Teaching Aid at the Introductory Level, J. Chem. Educ., Vol.84, No.7, p.1147, 2007.CrossRefGoogle Scholar
  29. [29]
    G L Gilbert, Lecture Table Experimental Demonstration of Entropy, J. Chem. Educ., Vol.54, No.12, p.754, 1977.CrossRefGoogle Scholar
  30. [30]
    I Muller and P Strehlow, Rubber and Rubber Balloons: Paradigms of Thermodynamics, Springer Science & Business Media, 2004.CrossRefGoogle Scholar
  31. [31]
    T Matsuo et al., Rubber Elasticity in the Introductory Thermodynamics Course, J. Thermal Analysis and Calorimetry, Vol.69, p.1015, 2002.CrossRefGoogle Scholar
  32. [32]
    T A Brzinski and K E Daniels, Burning Rubber: A Polymer Physics Lab for Teaching Entropy, American J. Physics, 2015.Google Scholar
  33. [33]
    D Roundy et al., From Fear To Fun In Thermodynamics, PERC Proceedings, American Association of Physics Teachers, p.42, 2013.Google Scholar
  34. [34]
    A Sarkar and S S Mondal, External and Internal Irreversibility: Heat Engine as an Example, Resonance, p.535, May 2018.Google Scholar
  35. [35]
    S J Appleyard, MakingWork: Demonstrating Thermodynamic Concepts with Solar-Powered Wax and Rubber Heat Engines, Phys. Educ., Vol.42, p.612, 2007.CrossRefGoogle Scholar
  36. [36]
    E G Cox, A Heat Engine Run by Rubber, J. Chem. Educ., Vol.31, No.6, p.307, 1954.CrossRefGoogle Scholar
  37. [37]
    N Muharayu et al., Designing of Learning by Analogy on an Elastic Heat Engine as an Enrichment Material in Senior High School, International Conference on Advances in Education Technology, 2014.CrossRefGoogle Scholar
  38. [38]
    N Muharayu et al., Theory of Thermodynamic Variables of Rubber Band Heat Engine, J. of physics, Vol.739, 2016.Google Scholar
  39. [39]
    J Srinivasan, Sadi Carnot and the Second Law of Thermodynamics, Resonance, p.42, November 2001.CrossRefGoogle Scholar
  40. [40]
    J E Mark, Some Aspects of Rubber-like Elasticity Useful in Teaching Basic Concepts in Physical Chemistry, J. Chem. Educ., Vol.79, No.12, p.1437, 2002Google Scholar
  41. [41]
    J G Mullen, G W Look and J Konkel, Thermodynamics of a Simple Rubberband Heat Engine, Amer. J. of Phy., Vol.43, p.349, 1975.CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  1. 1.Department of Polymer EngineeringUniversity College of EngineeringThodupuzhaIndia
  2. 2.Department of Metallurgical and Materials EngineeringIndian Institute of TechnologyMadras, ChennaiIndia

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