The work done by a system is 8J, when 40J heat is supplied to it. The change in internal energy of the system during the process is:

  • Option 1)

    32J

  • Option 2)

    48J

  • Option 3)

    16J

  • Option 4)

    24J

 

Answers (1)

As discussed in

First law of Thermodynamics -

Energy of universe is always conserved or total energy of an isolated system is always conserved

\Delta E= q + W


 

- wherein

\Delta E= Internal Energy

q= Heat

W= work

 

 W=-8J, \: q=40J

\Delta E=q+w

=40-8

32J


Option 1)

32J

Option is correct

Option 2)

48J

Option is incorrect

Option 3)

16J

Option is incorrect

Option 4)

24J

Option is incorrect

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