An experimental laser heating system is used to test the thermal performance of a sample of engine coolant. The laser supplies a constant power of 320 W320\text{ W}320 W to a sample of mass 650 g650\text{ g}650 g of the coolant inside a container. It takes 6.5 minutes6.5\text{ minutes}6.5 minutes for the temperature of the coolant to rise from 15.0∘C15.0^\circ\text{C}15.0∘C to 60.0∘C60.0^\circ\text{C}60.0∘C.
Calculate the thermal energy transferred from the coolant to the container and the surroundings. (Specific heat capacity of the coolant = 2400 J kg−1 K−12400\text{ J kg}^{-1}\text{ K}^{-1}2400 J kg−1 K−1)
