A given system undergoes a change in which the work done by the system equals the decrease in its internal…
A given system undergoes a change in which the work done by the system equals the decrease in its internal energy. The system must have undergone an
isothermal change
adiabatic change
isobaric change
isochoric change
Solution
As work done, $\Delta W=\Delta Q-\Delta U$
Since in adiabatic process $\Delta Q=0$ i.e., there is no exchange of heat, the work done by the system is equal to the decrease in its internal energy.