Related questions with answers
The normal airflow over the Rocky Mountains is west to east. The air loses much of its moisture content and is chilled as it climbs the western side of the mountains. When it descends on the eastern side, the increase in pressure toward lower altitudes causes the temperature to increase. The flow, then called a chinook wind, can rapidly raise the air temperature at the base of the mountains. Assume that the air pressure p depends on altitude y according to
. Also assume that the ratio of the molar specific heats is γ = 4/3. A parcel of air with an initial temperature of -5.00°C descends adiabatically from
to y = 1567 m. What is its temperature at the end of the descent?
An ideal refrigerator does 150 J of work to remove 560 J as heat from its cold compartment. What is the refrigerator’s coefficient of performance?
- Work: ;
- Heat: ;
a) The efficiency of a refrigerator ;
b) Amount of heat exhausted per cycle ;
Recommended textbook solutions
More related questions