Show that the conversion of work into heat is complete and continuous.
1 Answer
  • Joule's experiments amply demonstrate that energy, when supplied to a system in the form of work, can be completely converted into heat

  • When work is done on a system or work transfer, this work has an effect of increase in internal energy.

  • The internal energy of the system is a function of temperature and hence temperature increases due to the internal energy increase.

  • Any process which leads to increase in temperature is a heat transfer process.

  • Joule found that the work found is completely converted to heat. Thus, when work is converted into heat, we always have W = Q

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