4kilograms of air is contained in a rigid well-insulated tank with a volume of 1m^3. the tanks is fitted with a paddle wheel that transfers energy to the air at a constant rate of 14 w for 1 h. during the process, the specific internal energy of the air increases by 5 (kj/kg). determine (a) plot the process on pv diagram (b) the specific volume at the final state, in m3/kg (c) (w1-2) in kg (d) (q1-2 )in kj

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

The higher the astm grain size number, the finer the gran is. a)-true b)-false