Question

Which has the strongest surface tension and give a brief reason why?

H2S(l) or CH3OH(l)

Answer 1

Surface tension is the tendency of the surface of a liquid to resist being broken.

Surface tension is thought to arise from the difference in intermolecular forces for water molecules within and on the surface. Molecules inside the liquid have interactions with other water molecules in all directions.

These values generally increase with increases IMF strength, as measured in terms of boiling point

since methanol has high boiling point than H2S

therefore methanol has strongest surface tension