The Second Law of Thermodynamics

  • Heat will spontaneously flow from a hot object to a cold object.

  • The amount of unusable energy in a closed system increases

  • The entropy in a closed system increases

  • It is impossible to turn all of the heat put into a system into work.


  • The measure of a system's thermal energy unavailability for conversion into mechanical work.

  • A measure of the disorder or randomness in a system. 

  • A measure of the equivalent states or multiplicity of a system.


This is an online interactive program to help you learn about the Second Law of Thermodynamics.

Click on the image below to run program.

Works only in windows. 



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