EXplain hOw thE adhEsiOn anD cohEsiOn rEsuLts tO thE formAtiOn oF a mEniscUs????

Question

eXplain hOw thE adhEsiOn anD cohEsiOn rEsuLts tO thE formAtiOn oF a mEniscUs????

pLsss....

anSwer.....

Answer 1

If the forces of adhesion in a liquid are stronger than the forces of cohesion (as in water), the liquid will 'stick' to another substance better than to itself, so will form a meniscus that turns up at the edges (as the particles are trying to 'stick' to the container and so look like they've 'climbed' up its sides).

If the forces of cohesion are stronger (as in mercury), the liquid particles will try to 'stick' to themselves and so that liquid will have a meniscus that turns down at the edges (as the particles will look like they are 'avoiding' the container and 'shrinking away' from it).