Specific heat capacity
= the energy required to raise the temperature of one gram of a substance by one degree Celsius.
- the higher the specific heat capacity, the more energy it takes to change a substances temperature.

To calculate the amount of heat gained or lost:
q = mcΔT

q = the heat gained or lost (Joules)
m = mass (grams)
c = specific heat capacity (J/goC)
ΔT = change in temperature (oC)

Practice: An 18.0g piece of an unidentified metal was heated from 21.5oC to 89.0oC. If 292 J of heat energy was absorbed by the metal in the heating process, what was the identity of the metal?

 Substance Specific Heat Substance Specific Heat Aluminum 0.90 J/goC Iron 0.46 J/goC Calcium 0.65 J/goC Mercury 0.14 J/goC Gold 0.13 J/goC Silver 0.24 J/goC

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q = 292 J
m = 18.0g
ΔT = 67.5oC
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q = mcΔT
292 J = (18.0g)(c)(67.5oC)
c = 0.24 J/goC
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So the metal must be silver.