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What is the greatest energy?
a) The kinetic energy of a 1000 kg car travelling at 100 km/hr.
b) The heat required to raise the temperature of 1 kg of water from 15°C to 45°C.
c) The energy contained in 200 g of butter. (The energy content of butter is 25 kJ/g.)
d) The energy required to convert 300g of liquid water at 100°C into steam.

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