# 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 $$\large{F}$$ $$\large{K}$$ 