Engine oil at 100°c and a velocity of 0.1 m/s flows over both surfaces of a 0.8-m-long flat plate maintained at 20°c. determine: (a)-the velocity and thermal boundary layer thicknesses at the trailing edge (b)-the local heat flux and surface shear stress at the trailing edge. (c)-the total drag force and heat transfer per unit width of the plate.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Asimple rankine cycle uses water as the working fluid. the water enters the turbine at 10 mpa and 480c while the condenser operates at 6 kpa. if the turbine has an isentropic efficiency of 80 percent while the pump has an isentropic efficiency of 70 percent determine the thermal efficiency

Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.