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The molar heat capacity of a chemical substance is the amount of energy that must be added, in the form of heat, to one mole of the substance in order to cause an increase of one unit in its temperature.
The table of specific heat capacities gives the volumetric heat capacity as well as the specific heat capacity of some substances and engineering materials, and (when applicable) the molar heat capacity.
Molar heat capacity is the amount of heat required to raise the temperature of 1 mole of a substance by 1 unit & is calculated by dividing heat capacity by the total number of moles.
The molar heat capacity (C p) is the amount of energy needed to increase the temperature of 1 mol of a substance by 1°C; the units of C p are thus J/(mol•°C). The subscript p indicates that the value was measured at constant pressure.
In SI units, molar heat capacity (symbol: c n) is the amount of heat in joules required to raise 1 mole of a substance 1 Kelvin. c n = Q/ΔT where Q is heat and ΔT is the change in temperature.
Molar Heat Capacity ( C p) is the amount of heat needed to increase the temperature of one mol of a substance by one degree at constant pressure. It is expressed in joules per moles per degrees Kelvin (or Celsius), J/(mol K) .
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, J mol⋅K J m o l ⋅ K. [3]