Acompressor has r-134a running through it at a rate of 2 lbm/s. the r-134a enters the compressor as a saturated vapor at -15°f. the r-134a leaves the compressor at 40 psia and a temperature of 140°f. if the compressor is being heated at the rate of 20 btu/s how much work, in btu/s, must be provided by the motor driving the compressor? did you write out the energy equation?

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.