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AP EAMCET202017 Sep 2020Evening ShiftPhysicsThermodynamicsActual

First law of thermodynamics is represented by

Options

  1. A(d Q=d U+d W )
  2. B(d U=d W+p d V )
  3. C(d W=d Q+d U )
  4. D(d U=d Q+p d V )

Correct answer

A. (d Q=d U+d W )

Step-by-step solution

According to first law of thermodynamics, (d Q=d U+d W ) where, (d Q= ) heat supplied to the system , (d U= ) change in internal energy of the system and (d W= ) work done by the system.

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