What is the maximum efficiency of a heat engine operating between 293 Kelvins and 273 Kelvins, the temperatures at the surface and several hundred meters below the surface, respectively, of the ocean?
Question 2
On a winter day the temperature is 5 degrees Celsius and the humidity is 0.003 kilograms per cubic meter. (a) What is the relative humidity? (b) The air is brought into a building and heated to 20 degrees Celsius without changing the humidity. What is the relative humidity inside the building?
Production efficiency.
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