CP Heat Calculation Homework 2

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Changed: 5c5
Equation: ΔH = (m)(ΔT)(c)            Other equations   m =                         c =                              ΔT =

Equation: ΔH = (m)(ΔT)(c)            Other equations   m =                       c =                            ΔT =


CP Heat Calculation Handout 2

Answer the following problems showing all work

Equation: ΔH = (m)(ΔT)(c)            Other equations   m =                       c =                            ΔT =
                ΔT = TF - TI
where ΔH = energy flow/change of system
            m = mass of system
            c = specific heat of system _____________
            TF = final temp
            TI = initial temp

1. What is the specific heat (c) of a substance if the 82.3g of substance released 1985cal of energy while the temperature went from 74.3°C to 21.0°C? (0.453cal/(g-°C))  system __________








2. A container of water gains 532cal of energy and the temperature went from 28.2°C to 39.1°C. How many grams of water is there? (48.8g)  system: __________










3. What is the temperature change (ΔT) of water if the water released 3020J of energy for a mass of 21.1g of water. (-34.2°C) system: __________














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