A Carnot engine operates between temperature levels of 600 K and 300 K. It drives a Carnot refrigerator, which provides cooling at 250 K and discards heat at 300 K. Determine a numerical value for the ratio of heat extracted by the refrigerator ("cooling load") to the heat delivered to the engine ("heating load").

Explanation:

Formula for maximum efficiency of a Carnot refrigerator is as follows.

      ..... (1)

And, formula for maximum efficiency of Carnot refrigerator is as follows.

      ...... (2)

Now, equating both equations (1) and (2) as follows.

  =        

                    =

                    =

                    = 2.5

Thus, we can conclude that the ratio of heat extracted by the refrigerator ("cooling load") to the heat delivered to the engine ("heating load") is 2.5.

learn it on the intertant so you can solve

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.