During an adiabatic expansion of $2\, moles$ of a gas, the change in internal energy was found $-50J.$ The work done during the process is ...... $J$
A$0$
B$100$
C$-50$
D$50$
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D$50$
d (d) For adiabatic forces $\Delta W = - \Delta U$ ($\because \Delta Q=0$)
==> $\Delta W = - ( - 50) = + 50J$
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