1. Tardigrade
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  3. Physics
  4. No work is done on the system, but q amount of heat is taken out from the system and given to the surroundings. Express the change in internal energy (Δ U) of this system and what type of wall does the system have ?

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Q. No work is done on the system, but $ q $ amount of heat is taken out from the system and given to the surroundings. Express the change in internal energy $ (\Delta U) $ of this system and what type of wall does the system have ?

J & K CETJ & K CET 2018Thermodynamics

Solution:

$w=0$, the wall is thermally conducting $\Delta\, U=-q$ (exothermic process)