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 84.1g of substance released 1984cal of energy while the temperature went from 76.3°C to 21.0°C? (6.28E3cal or 6280cal) system __________
2. How much heat (in J) is released when 32.2 grams of water goes from a temperature of 84.0degC to 41.4degC? (5.73E3J or 5730J ) 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 41.9g. (2.36E3cal or 2360cal) system: __________