An electric appliance supplies $6000\, {J} / {min}$ heat to the system. If the system delivers a power of $90\, {W}$. How long (in $sec$) it would take to increase the internal energy by $2.5 \times 10^{3}\, {J}$ ?
JEE MAIN 2021, Medium
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$V\propto {T^{\frac{2}{3}}}$ $[R = 1.99\ cal/mol-K]$