A 1 gigawatt electrical power plant is 40 efficienta if, Ask an Expert

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A 1 gigawatt electrical power plant is 40% efficient.

(a) If coolant water flows through it at a rate of 2.16 x 105 m3/ hour, by how many degrees Celsius is the coolant water heated? (Waters specific heat is 4 186 Jikg and its density is 10³ kg/m³ .)

(b) If the power plant uses evaporative cooling, how much water is evaporated per second? (It takes about 2.5 x 10⁶ J to heat up and evaporate 1 kg of water.)

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