The three fundamental equations of conservation EQUATION OF Locol change Change b I Chonge by Chonge by CONSERVATION OF convection diffusion production 0 Boundary condition ac MASS c at Moss transfer a km.△c ENERGY 0 Heot transfer=ha△r MOMENTUM :0 Sheor force Surfoce tension force= 7( CORRESPONDING Diffusive QUANTITIES Unit Production Boundary (per unit of volume) transport transfer MASS D km△c ENERGY cppr h△T MOMENTUM T or TE-I