The surface tension of water, a needed quantity in several of the following problems, is related to temperature according to the expression σ = 0.1232 [1 − 0.00146 T] , where σ is in N/m and T is in K. In the English system with σ given in lbf/ft and T in ?F, the surface tension may be calculated from σ = (8.44 × 10−3) [1 = 0.00082 T].
A square pan with sides measuring 1 ft and a perpendicular lip extending 1 in. above the base is oriented with its base at an angle of 20 degrees from the horizontal. The pan surface is kept at 180°F and it is situated in an atmosphere of 210°F steam. How long will it be before condensate spills over the lip of the pan?
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.