With the increase in temperature, the angle of contact

Question

With the increase in temperature, the angle of contact (A) increases (B) decreases (C) remains constant (D) first increases and then decreases

Tardigrade Admin · Accepted Answer

We know that the surface tension decreases as the temperature increases. As the surface tension decreases, the intermolecular cohesive forces decreases, and liquid spreads more easily on surfaces i.e. contact angle decreases.

Q. With the increase in temperature, the angle of contact

increases

decreases

remains constant

first increases and then decreases

We know that the surface tension decreases as the temperature increases. As the surface tension decreases, the intermolecular cohesive forces decreases, and liquid spreads more easily on surfaces i.e. contact angle decreases.