True/False. Decide if each statement is true or false, and write true or false in the blank
6. The hydrosphere is the air that surrounds the earth.
7. The mantle is the layer of iron-rich minerals
surrounding the earth's core.
8. The asthenosphere is the innermost layer of
the earth.
9. The lithosphere is the outermost layer of the mantle,
including the earth's crust.
10. The crust is the outermost layer or surface of
the earth.

4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)