Heat transfer through matter in 3 phases namely Heat conduction, Heat convection and Heat radiation

Heat conduction

Matter change its temperature when it is in contact with heat energy

${\displaystyle \Delta T=T_{2}-T_{1}}$

${\displaystyle E=mc\Delta T=mc(T_{2}-T_{1})}$

Heat convection

Matter absorbs heat energy to its maximum level and gives off visible light

${\displaystyle E=hf_{o}}$

${\displaystyle f_{o}={\frac {C}{\lambda _{o}}}}$

Heat radiation

Matter absorbs heat energy to its maximum level and gives off free electron

${\displaystyle E=E_{o}+E_{e}=hf_{o}+{\frac {1}{2}}mv^{2}}$

${\displaystyle v={\sqrt {{\frac {2}{m}}(E-hf_{o})}}}$

${\displaystyle v>0}$ when ${\displaystyle E-hf_{o}>0}$

${\displaystyle {\frac {E}{h}}>f_{o}}$