A 6000 Kg mass of water is brought to a uniform temperature of 98 ˚C in a heavily insulated tank using an electrical heater. The initial uniform temperature of the water is 20 ˚C. The heat loss through the insulation is 5(108) J as the mass of water is heated. The specific heat of water is 4,120 J/(Kg K). Calculate the electrical energy required to perform this process.

Question

A 6000 Kg mass of water is brought to a uniform temperature of 98 ˚C in a heavily insulated tank using an electrical heater. The initial uniform temperature of the water is 20 ˚C. The heat loss through the insulation is 5(108) J as the mass of water is heated. The specific heat of water is 4,120 J/(Kg K). Calculate the electrical energy required to perform this process.

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