Determine the change in the entropy of air, in kj/kg-k, as it undergoes a change of state from 100 kpa and 20°c to 600 kpa and 300°c using the equation of state p(v-a) = rt where a = 0,02 m3/kg. also find the value using the ideal gas equation of state. use data from the tables. the value of the ideal gas constant for air is r= 0.287 kj/kg-k. the change in the entropy of air for the equation of state is kj/kg-k and for the ideal gas equation of state is kj/kg-k.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer