232. Calculate the work of adhesion in systems water - graphite and benzene - graphite. The surface tension at the border with air of water and benzene is 72.75*10-3 J/m2 (or N/m) and 28.88*10-3 J/m2, respectively, and the wetting angles are 108° and 40°. Which substance wets graphite (coal) better?

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