Heat and heat balance

Three thermodynamics calculations. The heat of warming depends on mass, specific heat and the temperature change:

$Q=m\,c\,\Delta T$

The heat of a phase change (melting, vaporisation) occurs at constant temperature: $Q=m\,L$. The final temperature of a mixture of two bodies follows from the heat balance (heat released = heat absorbed):

$T_k=\frac{m_1 c_1 T_1+m_2 c_2 T_2}{m_1 c_1+m_2 c_2}$

The calculator has specific-heat presets (water 4200, aluminium 900, iron 450 J/kg·K).