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AP EAMCET202021 Sep 2020Evening ShiftPhysicsThermodynamicsActual

The condition (d Q=d W ) holds good in which of the following ?

Options

  1. AAdiabatic process
  2. BIsothermal process
  3. CIsochoric process
  4. DIsobaric process

Correct answer

B. Isothermal process

Step-by-step solution

According to first law of thermodynamics, (d Q=d W+d U ) ...(i) For isothermal process, there is no change in internal energy. Hence, (d U=0 ) ( ) From Eq. (i), we get (d Q=d W ) Hence, above equation holds good for isothermal process.

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