R134a enters an adiabatic compressor as a saturated vapor with a pressure of 120 kPa. The volumetric flow rate entering the compressor is 0.3 m3/min. The compressor isentropic efficiency is 80%. The exit pressure is 1 MPa. Find the temperature of the refrigerant at the exit and the power required to run the compressor. (

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Courses that are developed by subject matter experts, internal or extemal to the college or university. these programs are marketed by the school (clo2) marks a)-vocational schools b)-vendor training c)-colleges & universities d)-continuing education programs

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?