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CP Heat Calculation Handout 1
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. 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?
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.
Answers:
1) 6.28E3 cal