Physics, asked by Nikki57, 1 year ago

A liquid drops breaks into 27 small drops . If surface tension of the liquid is S, then find the energy released ?

Answers

Answered by Anonymous
7
Hi

Here is your answer,

Let the radius of largr drop = R 

and radius of each small drop = r 

Volume of 27 small drops = Volume of the large drop 

                
                  → 27 × 4/3 × 4/3π R³ 
              
 So,                 → r = R/3


Surface area of larger drop = 4πR²

Surface are of 27 small drops = 27 × 4πr²

               → 27 × 4π (R/3)² = 12πR²


∴ Increase in surface area  = 12πR² - 4πR² = 8πR² 

 Increase in energy = Increase in surface area  × Surface tension

           
→ 8πR² × S



Hope it helps you !
Answered by komalsanu
4

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