Question

Surface tension may be defined as:

• A. the work done per unit area in increasing the surface area of a liquid under isothermal conditions
• B. the work done per unit area in increasing the surface area of a liquid under adiabatic conditions
• C. the work done per unit area in increasing the surface area of a liquid under isochoric conditions
• D. free surface energy per unit volume

Answer 1

The correct option is A the work done per unit area in increasing the surface area of a liquid under isothermal conditions

Surface tension of a liquid may be defined as the work done per unit area in increasing the surface area of a liquid under isothermal conditions.