A liquid contained in an adiabatic container is shaked vigorously so that it its temp. Increases. The heat capacity for the liquid is given, the rise in temp. Is given. According to the first law of thermo, dQ=dW + dU here dQ is 0. Asked, is to find the work done on the system, i.e. -dW =dU The correct solution to this is dU = m*s*dT My question is , how can this formula be used ?? Since the correct formula is dQ=m*s*dT ??