A 50 KW electric furnace measure 1.2m x 1.0m x 0.8m. When the temperature inside the furnace is 1520 o C, a block of aluminum with a mass of 300kg and a temperature of 16.5 o C is placed inside. Assuming the heat loss from the furnace walls is 500 Watts per m 2 , how long will it take to heat the aluminum block to the furnace temperature? Assume that the specific heat of aluminum is 0.9 KJ/kg-K

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Q: 0.25 kg cup of water from 55C to 82 C. How much energy would this take? (the specific heat of water…

A: As per the given data mass(m) = 0.25 kg               = 0.25×103g               = 250 g

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A: Given: Mass of block of copper is m=300g. Specific heat capacity of copperc is 0.093 cal/g·°C.…

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