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Estimate the energy required to raise the temperature of 2 kg (4.42 lbm) of the following materials from 20 to 100°C (68 to 212°F): aluminum, steel, soda–lime glass, and high density polyethylene. = 900 J/kg-K, = 486 J/kg-K, − = 840 J/kg-K, hh h = 1850 J/kg-K