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A nickel wire 0.0127 cm diameter is suspended in its own vapor at 1300C. It is found that a weight of 0.0366 grams is required

A nickel wire 0.0127 cm diameter is suspended in its own vapor at 1300C. It is found that a weight of 0.0366 grams is required to balance the tendency of the wire to shrink, and there are thirty grains per centimeter of wire length. Calculate the surface energy in units of ergs/cm2 by assuming that GB = SV/3.

 

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