A rigid, well-insulated tank contains a mixture of liquid-vapor (2 phase) Ammonia.

There is 0.0025 ft3 of saturated liquid and 1.5 ft3 of saturate vapor, initially at 40 psi. A

paddle wheel stirs the mixture until only saturated vapor at higher pressure remains in the

tank. KE and PE can be considered negligible. Taking the Ammonia as the system,

determine the amount of energy that has been transferred by work in Btu.

1in2 processor chip can be modelled as an isothermal plane wall of silicon, isothermal on both sides. the power input to the bottom of the plane wall, or the processing power of the chip, often called the thermal design power (tdp), is 100w. assume the periphery is adiabatic. the silicon is 400 microns thick. the temperature at the junction, or in this case on the bottom of the isothermal plane wall, is 85°c. what is the top surface temperature, assuming that the only mode of heat transfer is conduction