Acondenser of a heat pump uses r-134a as a working fluid. the fluid enters the condenser (after leaving the compressor) at a pressure of 120 psia and 140 f and a volume flow rate of 1.5 ft3/s.
the condenser cools the r-134a to a temperature of 90.49 f and a quality of 50% at the same pressure as it entered.

based on steady flow through the condenser what is the heat flow rejected to the outside air in btu/s to three significant digits?

What precautions should you take to prevent injuries when dealing with heavy loads?

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.