What is surface energy?
(N/A) Surface energy is defined as the amount of work done in increasing the surface area of a liquid by a unit amount at a constant temperature.
It is numerically equal to the surface tension of the liquid.
Mathematically,if $W$ is the work done to increase the surface area by $\Delta A$,then the surface energy $S$ is given by $S = \frac{W}{\Delta A}$.
The $SI$ unit of surface energy is $J/m^2$ or $N/m$.
It is numerically equal to the surface tension of the liquid.
Mathematically,if $W$ is the work done to increase the surface area by $\Delta A$,then the surface energy $S$ is given by $S = \frac{W}{\Delta A}$.
The $SI$ unit of surface energy is $J/m^2$ or $N/m$.
Explore More
Similar Questions
The surface energy of a liquid drop is $U$. It splits up into $512$ equal droplets. The surface energy becomes (in $U$)
$A$ liquid drop having surface energy $E$ is spread into $216$ droplets of the same size. The final surface energy of the droplets is (in $E$)
$A$ wire of length $10 \, cm$ is used in a soap film experiment. What is the work done to move the wire by $1 \, mm$? (Surface tension $T = 7.2 \times 10^{-2} \, N/m$)
Difficult
View SolutionThe surface tension of a soap solution is $T$. Work done in blowing a soap bubble of diameter $2d$ is (in $\pi d^2 T$)
The work done in blowing a soap bubble of $10 \,cm$ radius is ...... $J$ (surface tension of soap solution is $0.03 \,N/m$).
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo