Q2 Consider a 0.8 m x 0.8 m thin square plate in a room at 10C. One side of the plate is maintained at a temperature of 100C, while the other side is insulated, as shown in Figure APPENDIX A.1. By referring Table APPENDIX A.1 and Table APPENDIX A.2, Analyse the rate of heat transfer from the plate by natural convection if the plate is: (a) Vertical position. (b) Hot surface facing up. (c) Hot surface facing down.