1)The thermostat on your hot water heater is raised 2 degrees celcius. If your hot water heater holds 400,000g of water, how much heat energy is used up to heat the tank?
2) The temperature of 50g of water was raised to 60c by the addition of 1.5 kJ of heat energy. What was the initial temperature of the water?
3) How much heat is released when 23.00g of water vapor condenses in a cloud to form raindrops?
4) How many joules of heat energy did the sun provide, of a 150 g patch of ice is melted
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