Question

why does surface tension of liquids generally decreases with increase of temperature? a because the kinetic energy of the molecules increases b because intermolecular attraction between molecules decreases c because the kinetic energy of the molecules decreases d both a and b

Explanation:

Surface tension is due to intermolecular forces. As temperature rises, molecules gain kinetic energy and move more freely, weakening intermolecular attractions.

Answer:

d. Both A and B