|
|
| (3 intermediate revisions by the same user not shown) |
| Line 1: |
Line 1: |
| ===Examples===
| |
| Problem: You have a burner that emits 15,000 J of heat in the period that it is left on. Will this burner be able to raise 2 kg of water from 50 °C to 52 °C? The specific heat capacity of water is 4,186 J/kg °C.
| |
|
| |
|
| Solution: Use Q=mCΔT. The amount of heat needed to do the process specified in the question is Q=(2 kg)*(4,186 J/kg °C)*(2 °C)=16,744 J. Since the burner only gives of 15,000 J, the water will not reach the desired temperature.
| |
|
| |
| Problem: What is the specific heat of 3 g substance that takes 100 J to raise 3 degrees.
| |
|
| |
| Solution: Use Q=mCΔT. Q=100 J, m= 3 g, ΔT=3 °C. 100J= (3 g)*(C)*(3 °C). C=11.11111 J/g °C.
| |
|
| |
| ==History==
| |
|
| |
| == See also ==
| |
|
| |
| *[[Specific Heat]]
| |
| *[[Thermal Energy]]
| |
| ===Further reading===
| |
|
| |
| Elementary Principles of Chemical Processes (3rd Edition) By: Richard M. Felder & Ronald M. Rousseau
| |
|
| |
| Encyclopædia Britannica, 2015, "Heat capacity"
| |
|
| |
| ==References==
| |
|
| |
| *http://chemwiki.ucdavis.edu/Physical_Chemistry/Thermodynamics/Calorimetry/Heat_Capacity
| |
| *http://www.chm.davidson.edu/vce/calorimetry/heatcapacity.html
| |
| *http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/spht.html
| |
| [[Category:Properties of Matter]]
| |