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1. imagine un recipiente aislado con masa despreciable que contiene medio litro de agua a 45 C. Que cantidad de hielo a -20 C debe

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1. imagine un recipiente aislado con masa despreciable que contiene medio litro de agua a 45 C. Que cantidad de hielo a -20 C debe ponerse para que la temperatura del agua sea 5"C? Chielo = 2090J/kg K, Caqua = 4190 ]/kg K, Para el hielo Ly=334x103]/kg

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