Air conditioners are rated by their coefficient of performance at 63 ∘f inside temperature and 90 ∘f outside temperature. an efficient but realistic air conditioner has a coefficient of performance of 3.2.

what is the maximum possible coefficient of performance?

As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "