On a cold day, you can warm your hands with a heat pad, a device that uses

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On a cold day, you can warm your hands with a “heat pad,” a device that uses the oxidation of iron to produce energy as heat.4 Fe(s) + 3 O(g)  2 FeO3(s)

up to 24 hours 22.62 Heat 36.92 A hand warmer uses the oxidation of iron as a source of thermal energy.

What mass of iron is needed to supply the energy required to warm 15 mL of water (d = 1.00 g/mL) from 23°C to 37°C?

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Chemistry And Chemical Reactivity

ISBN: 9780357001172

10th Edition

Authors: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

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