25 points The temperature of the earth's atmosphere varies according to the equation T=-0.0052 + 288.15 where T is in Kelvin and z is in meters. If the air temperature at ground level is is °C and pressure is 760 mm Hg. Assume air to be an ideal gas with an average molecular weight of 28.9 g/mol. At an elevation of 5,575 m what is the corresponding pressure in mm Hg? 0 380 0 280 480 O 880

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.