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Define surface tension....

Define surface tension.

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Surface tension is defined as force per unit length acting perpendicular to the tangential line on the surface. It is due to unbalanced attractive forces acting donwards
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SUBHASH PUBLICATION-STATES OF MATTER : GASES AND LIQUIDS -TWO MARK QUESTIONS AND ANSWERS
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  5. Why is Boyle's law is obyed by N(2), O(2) or CO(2) ony at low pressur...

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  6. Compare the rate of diffusion of HCl and NH(3) (Atomic massses of H1u,...

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  7. State Avogadro law and write mathematical form.

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  8. What is STP ?

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  9. Derive ideal gas equation from gas laws.

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  10. Calculate gas constant (R) value in litre. Bar. /K/ mole.

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  11. Calculate gas constant (R) value in litre. Bar. /K/ mole.

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  12. Derive the relation between Density and Molar mass of a gaseous substa...

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  13. State Dalton's law of partial pressure and write mathematical form.

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  14. Explain Aqueous tension.

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  15. What is average speed (barc or u(av)) ?

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  16. Explain root mean square speed (C or U(rms))

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  17. What are the causes for deviation of real gases from ideal behaviour.

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  18. What are the conditions for ideal behaviour ?

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  19. Define surface tension.

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  20. Define visocity of a liquid.

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