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[[File:copper specific heat.jpg|300px|thumb|Figure 1. Copper has a molar heat capacity of 24.5 J/mol⋅K, meaning that it requires 24.5 J of energy to heat a mole of copper by one degree Kelvin.<ref>Helmenstine, Todd. "Specific Heat Example Problem." ThoughtCo, Aug. 27, 2020. [Online]. Available: thoughtco.com/specific-heat-example-problem-609531. [Accessed: 12-May-2021]</ref> To see more examples of molar heat capacities of different substances, visit this [http://hyperphysics.phy-astr.gsu.edu/hbase/Tables/sphtt.html HyperPhysics page].]]

'''Molar heat capacity''' is defined as the amount of [[heat]] required to raise 1 [[mole]] of a substance by 1 degree [[Kelvin]].<ref>"What Is Molar Heat Capacity And How Do You Calculate It?" Science ABC, 2021. [Online]. Available: https://www.scienceabc.com/pure-sciences/what-is-molar-heat-capacity-and-how-do-you-calculate-it.html. [Accessed: 12-May-2021]</ref> Molar heat capacity is very similar to [[specific heat capacity]] but measures per mole instead of per [[gram]] of substance. Molar heat capacity is an intensive property (it doesn’t vary with the amount of substance). The SI unit of molar heat capacity is [[Joule]] per mole per Kelvin, <math>\frac{J}{mol⋅K}</math>.<ref>"Molar heat capacity," Wikipedia, 2021. [Online]. Available: https://en.wikipedia.org/wiki/Molar_heat_capacity. [Accessed: 12-May-2021]</ref>

The formula for molar heat capacity is shown below:
<center><math>c_n=\frac{Q}{n\Delta T}</math></center>

where

* <math>c_n</math> is the molar heat capacity,
* <math>Q</math> is the heat needed (in Joules),
* <math>n</math> is the number of moles, and
* <math>\Delta T</math> is the change in temperature of the system (in Kelvin).

To find the number of moles (<math>n</math>) of a substance, divide the mass of the sample (in grams) by its Molar mass (in grams/mol): <math>n=\frac{m}{M}</math>.

The equation for molar heat capacity does not apply if a phase change is occurring, because the heat added or removed during a phase change does not change the temperature.<ref>Hyperphysics, ''Specific Heat'' [Online], Available: http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/spht.html</ref>

==Further Reading==
*[[Specific heat capacity]]
*[[Heat capacity]]
*[[Mole]], [[Molar mass]]
==References==
{{reflist}}
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Molar heat capacity - Revision history

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energy>Jmdonev at 20:42, 13 May 2021