A refrigeration cycle operating between two reservoirs receives energy QC from a cold reservoir at TC = 250 K and rejects energy QH to a hot reservoir TH = 350 K. For each of the following cases determine whether the cycle operates reversibly, irreversibly, or is impossible: (a) QC = 1500 kJ, QH = 2200 kJ, (b) QC = 1500 kJ, Wcycle = 120 kJ, (c) QH = 1600 kJ, Wcycle = 500 kJ, (d) COP = 6.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

answer: hi

explanation:

answer:

explain:

we don't have any choices.