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What is an example chemical energy practice problem?
Example Problem: If a 2.34 g substance at 22°C with a of 3.88 cal/g-°C is heated with 124 cal of energy, what is the new temperature of the substance?
Answer: ΔT = q
MC ΔT = (124)
(2.34)(3.88) = 13.7°C new T = 22 + 13.7 = 35.7°C Two other common heat variables are the heat of fusion and the heat of vaporization. Heat of fusion is the heat required to melt a substance at its melting temperature, while the heat of vaporization is the heat required to evaporate the substance at its boiling point.Shodor.org