Ethyl alcohol bubbles form at 78.50C, 101 kPa. Assuming that the surface tension is 75 mN/m and the density of vapor ethyl alcohol is 0.8 kg/m^3 with a vapor pressure of 102 kPa, estimate the buoyant force acting on the bubbles.
What will be an ideal response?
The buoyant force acting on the bubbles will be the product of the bubble volume with
the specific weight of the surrounding fluid, in this case being liquid ethyl alcohol.
Referring to Appendix Table B-3, the density of ethyl alcohol (ethanol) may be taken as
787 kg/m^3. The specific weight of liquid ethyl alcohol is then
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