The melting temperature of the silicon is 1685 K. Assume a temperature of T[infinity]= 700 K in the ambient surrounding the sheets with a convective heat transfer coefficient of h= 10 W/m2·K. Assume that the width and the thickness of the sheets are 8.5 cm and 0.150 mm, respectively. What is the maximum velocity with which the sheet can be pulled out of the molten silicon? Assume all the energy released by solidification is dissipated by convection from the two sides of the sheet. Take the latent heat of fusion for silicon as hsf= 1.8 × 106 J/kg.

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj