Specific Heat

on . Posted in Thermodynamics

Specific heat, abbreviated as c, is the amount of heat energy required to raise the temperature of one unit of mass of a substance by one degree Celsius or one Kelvin.  Each substance has its own specific heat, which depends on its molecular structure and bonding.  Substances with a high specific heat require more heat energy to raise their temperature than substances with a low specific heat.  This property is important in many areas of science and engineering, such as thermodynamics, materials science, and heat transfer.

See article link Specific Heat of an Element

 

Specific heat formula

\(\large{ c = \frac{ Q  }{m  \; \Delta T }  }\)
Symbol English Metric
\(\large{ c }\) = specific heat \(\large{\frac{Btu}{lbm-F}}\) \(\large{\frac{kJ}{kg-K}}\)
\(\large{  Q }\) = specific heat capacity \(\large{\frac{Btu}{lbm-F}}\) \(\large{\frac{kJ}{kg-K}}\)
\(\large{ m }\) = mass \(\large{lbm}\) \(\large{kg}\)
\(\large{ \Delta T }\) = temperature change \(\large{F}\) \(\large{K}\)

 

Specific heat formula

\(\large{ c = \frac{ U^2 }{ 2 \; Ec \; \Delta T }   }\)
Symbol English Metric
\(\large{ c }\) = specific heat \(\large{\frac{Btu}{lbm-F}}\) \(\large{\frac{kJ}{kg-K}}\)
\(\large{ U }\) = characteristic flow velocity \(\large{\frac{ft}{sec}}\) \(\large{\frac{m}{s}}\)
\(\large{ Ec }\) = Eckert number \(\large{dimensionless}\)
\(\large{ \Delta T }\) = temperature change \(\large{F}\) \(\large{K}\)

 

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Tags: Heat Equations Specific Heat Equations