(a) In the manufacture of paint, a specific solid additive is used to improve the property. The heat of fusion of the solid is 140 cal/g at a temperature of 10°C and pressure of 1 atm. The ratio of specific volume (m/kg) of solid and liquid is 1.120. Calculate the effect of saturated pressure on temperature (K/Pa).

plz answer both 2 questions

Q3) Find the hydrodynamic boundary layer thickness of the fluid flow velocity profile u/U=2(y/5)-(y/d)^3+(y/ō)^4? * Your answer

The heat transfer coefficient, h(W/m2-K) is assumed to be dependent on the fluid density p, dynamic fluid viscosity , fluid velocity V, thermal conductivity, k, fluid specific heat, Cp, and characteristic length of heat transfer area, L. Develop an expression that relates the heat transfer coefficient with the other variables.