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Molecular forces are...

Molecular forces are

A

only adhesive

B

only cohesive

C

only repulsive

D

cohesive and adhesive .

Text Solution

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The correct Answer is:
D
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Molecular forces that bind polymer chains are __________.

Molecular forces exist between the molecules of a liquid in a container. The molecules on the surface have unequal force leading to a tension on the surface. If this is not compensated by a force, the equilibrium of the liquid will be a difficult task. This leads to an excess pressure on the surface. The nature of the meniscus can inform us of the direction of the excess pressure. The angle of contact of the liquid decided by the forces between the molecules, air and container can make the angle of contact. In a meniscus of radius r , with excess pressure p in atmospheric pressure p_(0) , the force experienced is

Molecular forces exist between the molecules of a liquid in a container. The molecules on the surface have unequal force leading to a tension on the surface. If this is not compensated by a force, the equilibrium of the liquid will be a difficult task. This leads to an excess pressure on the surface. The nature of the meniscus can inform us of the direction of the excess pressure. The angle of contact of the liquid decided by the forces between the molecules, air and container can make the angle of contact. The direction of the excess pressure in the meniscus of a liquid of angle of contact 2pi//3 is

Molecular forces exist between the molecules of a liquid in a container. The molecules on the surface have unequal force leading to a tension on the surface. If this is not compensated by a force, the equilibrium of the liquid will be a difficult task. This leads to an excess pressure on the surface. The nature of the meniscus can inform us of the direction of the excess pressure. The angle of contact of the liquid decided by the forces between the molecules, air and container can make the angle of contact. If the excess pressure in a soap bubble is p , the excess pressure in an air bubble is

Based On Molecular Forces

Inter molecular forces in solid hydrogen are

The type of molecular forces of attraction present in the following compounds is :

TARGET PUBLICATION-SURFACE TENSION -EVALUATION TEST
  1. Molecular forces are

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  2. A drop of Volume V is pressed between the two glass plates so as to sp...

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  3. Assertion : When two soap bubbles having different radii are kept in c...

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  4. A capillary tube with very thin walls is attached to the beam of a bal...

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  5. One end of a glass capillary tube with a radius r is immersed into wat...

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  6. A capillary tube of radius r is lowered into water whose surface tensi...

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  7. A soap bubble of radius 'r' is blown up to form a bubble of radius 2r ...

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  8. Assertion : Pressure in bubble ( r ) in the atmosphere of pressure...

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  9. Assertion:- Rise of water level in capillary tube should be accounted ...

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  10. In gravity free space. The liquid in a capillary tube will rise to

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  11. Assertion : When there is a thin layer of water between two glass pla...

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  12. A glass capillary tube of radius r is placed vertically touching the s...

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  13. A capillary is dipped in water vessel kept on a freely falling lift, t...

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  14. Two spherical soap bubbles of radii r1 and r2 in vacuume coalesce unde...

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  15. Water rises to height of 5 cm in glass capillary tube . If the area of...

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  16. Suppose that 64 raindrops combine into a single drop . Calculate the r...

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  17. Two separate air bubbles (radii 0.002 cm and 0.004) formed of the same...

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  18. Two soap bubbles A and B are kept in a closed chamber where the air is...

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  19. Two parallel glass plates are held vertically at a small separation d ...

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  20. A glass rod of diameter d1 =1.5 mm is inserted symmetrically into a ...

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  21. When a loop of wire is dipped in a wetting liquid and is taken out. A ...

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