Question

If \(T\) and \(n\) are surface tension and coefficient of viscosity, if temperature increases, then:

• A. Surface tension decreases, viscosity decreases
• B. Surface tension decreases, viscosity increases
• C. Surface tension increases, viscosity decreases
• D. Surface tension increases, viscosity increases

Hint:

When studying the effect of temperature on physical properties like surface tension and viscosity, remember that temperature usually decreases surface tension but increases viscosity in most liquids.

Answer 1

The Correct Option is B

The relationship between temperature, surface tension, and viscosity is as follows: - Surface tension generally decreases as temperature increases because higher temperatures provide more energy to overcome intermolecular forces. - Viscosity typically increases with temperature for liquids, especially for more complex liquids where molecular motion becomes less restricted as the temperature rises. Thus, as temperature increases, surface tension decreases and viscosity increases.