Explain why mercury does not wet glass while water does.
PHYSICS
WAEC 2009
Explain why mercury does not wet glass while water does.
Explanation
Mercury does not wet glass because (force of) cohesion/attraction of mercury molecules is greater than (force of) adhesion/attraction between glass and mercury molecules. Water wets glass because (force of) adhesion/attraction between glass and water molecules is greater than (force of) cohesion/attraction of water molecules.
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