Difference between revisions of "Heat capacity"
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| − | '''Heat capacity''', also called '''specific heat capacity''' is the amount of [[heat]] it takes to make a certain [[mass]] of a substance increase by a certain amount of [[temperature]]. The unit of [[calorie]] is defined by the heat capacity of [[water]]: 1 calorie is defined as the amount of heat it takes to heat 1 [[gram]] of water 1 degree [[Celsius]]. | + | '''Heat capacity''', also called '''specific heat capacity''' is the amount of [[heat]] it takes to make a certain [[mass]] of a substance increase by a certain amount of [[temperature]]. The unit of [[calorie]] is defined by the heat capacity of [[water]]: 1 calorie is defined as the amount of heat it takes to heat 1 [[gram]] of water 1 degree [[Celsius]]. It is approximately <math>4.2 \times 10^{-3} \, \mbox{J} \ \mbox{kg}^{-1} \ \mbox{K}^{-1}</math> |
A table of heat capacities of select substances is as follows: | A table of heat capacities of select substances is as follows: | ||
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| Water || 1.00 | | Water || 1.00 | ||
|}<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> | |}<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> | ||
| + | |||
| + | The heat required, <math>Q</math> to heat up an object of mass <math>m</math> and heat capacity <math>c</math> by a temperature <math>\Delta T</math> is <math>Q= mc \, \Delta T</math> | ||
==References== | ==References== | ||
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[[Category:Chemistry]] | [[Category:Chemistry]] | ||
[[Category:Physics]] | [[Category:Physics]] | ||
| + | [[Category:Thermodynamics]] | ||
Revision as of 14:48, September 24, 2016
Heat capacity, also called specific heat capacity is the amount of heat it takes to make a certain mass of a substance increase by a certain amount of temperature. The unit of calorie is defined by the heat capacity of water: 1 calorie is defined as the amount of heat it takes to heat 1 gram of water 1 degree Celsius. It is approximately
A table of heat capacities of select substances is as follows:
| Substance | Heat Capacity |
|---|---|
| Copper | 0.092 |
| Glass | 0.200 |
| Iron | 0.108 |
| Styrofoam | 11.95 |
| Water | 1.00 |
The heat required, to heat up an object of mass and heat capacity by a temperature is
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Chemistry. Apologia Educational Ministries, Inc. 1998