CP Heat Calculation Homework 1

Answer the following problems showing all work

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

1. How much heat (in cals) is required to raise the temperature of 155 grams of water from 25.0degC to 65.5degC?

system __________








2. How much heat (in J) is released when 322 grams of water goes from a temperature of 84.0degC to 41.5degC?system: __________












3. How much heat (in cals) is required to raise the temperature from 17.3degC to 73.6degC? The mass of the water is 419g. system: __________













Answers:
1) 6.28E3 cal