Saturday, January 7, 2012

Problem from Surface Tension

A liquid drop of diameter 4mm breaks into 1000 droplets of equal size . Calculate resultant change in surface energy. the surface tension of liquid is 0.07N/m.

Hints.

  • The volume of droplets remains the same. from this you can calculate the new radius.

  • Change in surface energy = surface tension x increase in surface area

No comments:

Post a Comment

Do not spam. Spammers will be banned from this site