The C.O.P. of a heat pump working on a reversed Carnot cycle is

A. T₁/(T₂ - T₁)

B. (T₂ - T₁)/T₁

C. (T₁ - T₂)/T₁

D. T₂/(T₂ - T₁)

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. In order to cool and dehumidify a stream of moist air, it must be passed over the coil at a temperature
  2. A refrigeration system
  3. The horizontal and non-uniformly spaced lines on a psychrometric chart indicates
  4. In a reversed Brayton cycle, the heat is absorbed by the air during
  5. The refrigerant used in small tonnage commercial machines (hermetically sealed units) is
  6. One of the purposes of sub cooling the liquid refrigerant is to
  7. Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since
  8. When the air is passed through an insulated chamber having sprays of water maintained at a temperature…
  9. Cooling water is required for following equipment in ammonia absorption plant
  10. For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of
  11. Most air cooled condensers are designed to operate with a temperature difference of
  12. The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature,…
  13. The evaporator used in household refrigerators is
  14. The bypass factor for a cooling coil
  15. Which of the following refrigerant is highly toxic and flammable?
  16. Bell Coleman cycle is a
  17. A refrigerant with the highest critical pressure is
  18. In a refrigerating machine, heat rejected is _________ heat absorbed.
  19. The evaporator changes the low pressure liquid refrigerant from the expansion valve into
  20. When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance…
  21. One ton of the refrigeration is
  22. The specific humidity during cooling and dehumidification
  23. During sensible cooling of air, specific humidity
  24. In mechanical refrigeration system, the refrigerant has the maximum temperature
  25. In a saturated air-water vapour mixture, the
  26. Hydrogen is used in Electrolux refrigeration system so as to _________ the rate of evaporation of the…
  27. Highest pressure encountered in a refrigeration system should be
  28. The condensing pressure due to the presence of non-condensable gases, as compared to that actually required…
  29. The alignment circle is marked on the psychrometric chart at
  30. The leakage in a refrigeration system using ammonia is detected by