A Carnot engine operating between a reservoir of liquid mercury at its melting point (233 K) and a colder reservoir extracts 10.0 J of heat from the mercury and does 8.0 J of work during each cycle. What is the temperature of the colder reservoir

T'=46.6 K              

Explanation:

Let T be the temperature of a hot reservoir, T' be the temperature of cold reservoir.

For a Carnot's engine, efficiency can be calculated as follows:

Where, W is the amount of work done, Q is the amount of heat extracted from the hot reservoir.

Substitute the values: W= 8.0 J

Q = 10.0 J

T = 233 K

Thus, the temperature of the cold reservoir is 46.6 K.

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.