A hot steel ball is dropped into a cold aluminum cup containing some water. ( Assume the system is an isolated.) If the ball loses 400 J of heat, what can be said according to calorimetry?
Answer to relevant QuestionsDiscuss the energy conversion in the process of adding heat to an object that is undergoing a phase change. Initially at 20 oC, 0.50 kg of aluminum and 0.50 kg of iron are heated to 100 oC. (a) The aluminum gains (1) more heat than the iron, (2) the same amount of heat as the iron, (3) less heat than the iron. Why? (b) Calculate ...A person goes on a 1500-Cal-per-day diet to lose weight. What is his daily energy allowance expressed in joules? (a) Converting 1.0 kg of water at 100oC to steam at 100oC requires (1) more heat, (2) the same amount of heat, (3) less heat than converting 1.0 kg of ice at to water at 0oC. Explain. (b) Calculate the difference in heat ...How much ice (at 0oC) must be added to 0.500 kg of water at 100 oC in a 0.200-kg aluminum calorimeter cup to end up with all liquid at 20 oC?
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