Heat Capacity

Written by Jerry Ratzlaff on . Posted in Thermodynamics

open system 1Heat capacity, abbreviated as C or \(c_p\), also called thermal capacity, is the ratio of heat transferred to raise the temperature of an object.  The heat gain or loss results in a change in temperature and the state and performance of work.

Heat Capacity Formula

\(\large{ C = \frac {\Delta Q} { \Delta T }     }\)

\(\large{ C =  \frac {Pe \; k}{ v \; \rho \; l_c }  }\)     (Peclet number)        


\(\large{ C }\) = heat capacity

\(\large{ l_c }\) = characteristic length

\(\large{ \rho  }\)  (Greek symbol rho) = density

\(\large{ \Delta Q }\) = amount of heat transfered

\(\large{ Pe  }\) = Peclet number

\(\large{ \Delta T }\) = temperature differential

\(\large{ k }\) = thermal conductivity

\(\large{ v  }\) = velocity


Tags: Equations for Heat