If t is the surface tension of soap solution

Asked by admin @ 13/08/2021 in Physics viewed by 385 People

If T is surface tension of soap solution , the amount of work done in blowing a soap bubble from a diameter D to a diameter 2D is

Answered by admin @ 13/08/2021

Answer:

In this case, work done = increase in surface energy, i.e.

$$W=T\Delta A\\ \Rightarrow W=T\times \left[ 2\left( 4\pi { D }^{ 2 } \right) -2\left( 4\pi { \left( \frac { D }{ 2 } \right) }^{ 2 } \right) \right] \\ \Rightarrow \boxed{ W=6\pi { D }^{ 2 }T}$$

Note: In calculation, area of sphere have been multiplied with 2, since there are two surfaces in soap bubble.

Which property cohesion or adhesion causes surface tension in water

Asked by admin @ 26/11/2021 in Biology viewed by 286 persons

What do water's properties of cohesion, surface tension, and adhesion have in common? 1) All have to do with the ionic bonds between water's atoms. 2) All result from the …

What does it mean to have a high surface tension

Asked by admin @ 22/11/2021 in Physics viewed by 278 persons

Why does water have a high surface tension? (2 points) Hydrogen bonding keeps water molecules close together. Water is a liquid at room temperature. The lengths of the bonds in …

How much weight can the surface tension of water hold

Asked by admin @ 09/11/2021 in Physics viewed by 295 persons

The surface tension of water was determined in a laboratory by using the drop weight method. 100 drops were released from a burette the inner diameter of whose opening is …

Water has a high surface tension what does this mean

Asked by admin @ 05/11/2021 in Biology viewed by 273 persons

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Asked by admin @ 05/11/2021 in Biology viewed by 387 persons

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State the colour of phenolphthalein in soap solution

Asked by admin @ 31/08/2021 in Science viewed by 484 persons

1.State the colour of phenolphthalein in soap solution. 2.Name the by-product of chlor-alkali process which is used for the manufacture of bleachingpowder.

There is a horizontal film of soap solution

Asked by admin @ 31/08/2021 in Physics viewed by 256 persons

There is a horizontal film of soap solution. On it a thread is placed in the form of a loop. The film is pierced inside the loop and the thread …

If t is the surface tension of a fluid

Asked by admin @ 20/08/2021 in Physics viewed by 268 persons

If t is the surface tension of a fluid then the energy needed to break a liquid drop of radius r into 64 equal drops

Explain surface tension on the basis of molecular theory

Asked by admin @ 13/08/2021 in Chemistry viewed by 301 persons

Explain the phenomenon of surface tension on the basis of molecular theory

Surface tension has the same dimension as that of

Asked by admin @ 12/08/2021 in Physics viewed by 271 persons

Surface tension has same dimension as that of

What is the colour of phenolphthalein in soap solution

Asked by admin @ 12/08/2021 in Science viewed by 296 persons

1.State the colour of phenolphthalein in soap solution. 2.Name the by-product of chlor-alkali process which is used for the manufacture of bleachingpowder.