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Dipole moment is a …………. Quanity and it...

Dipole moment is a …………. Quanity and its units are ……….. .

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vector ; C-m
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Polar covalent molecules exhibit dipole moment. Dipole moment is equal to the product of charge separation, q and the bond length d for the bond. Unit of dipole moment is Debye. One Debye is equal to 10^(-18) esu-cm. Dipole moment is a vector quantity. It has both magnitude and direction. Hence, dipole moment of a molecule depends upon the relative orientation of the bond dipoles, but not on the polarity of bonds alone. A symmetrical structure shows zero dipole moment. Thus, dipole moment helps to predict the geometry of a molecules. Dipole moment values can be used to disinguisd between cis- and trans- isomers, ortho-, meta - and para - forms of a substance, etc. The dipole moment value of H-X molecule is 1.2 Debye. If the internuclear distance between H-X is 0.8Å then the % ionic character in H-X molecules is :

Dipole Moment and its applications

Dipole Moment and its applications

Polar covalent molecules exhibit dipole moment. Dipole moment is equal to the product of charge separation , q and the bond length d for the bond. Unit of dipole moment is debye. One debye is equal to 10^(-18) esu cm. Dipole moments is a vector quantity. It has both magnitude and direction. Hence, dipole moment of a molecule depends upon the relative orientation of the bond dipoles, but not on the polarity of bonds alone. A symmetrical structure shows zero dipole moment. Thus, dipole moment helps to predict the geometry of a molecules. Dipole moment values can be distinguish between cis- and trans- isomers, ortho, meta and pare-forms of a substance, etc. Q. Which is a polar molecule?

Polar covalent molecules exhibit dipole moment. Dipole moment is equal to the product of charge separation , q and the bond length d for the bond. Unit of dipole moment is debye. One debye is equal to 10^(-18) esu cm. Dipole moments is a vector quantity. It has both magnitude and direction. Hence, dipole moment of a molecule depends upon the relative orientation of the bond dipoles, but not on the polarity of bonds alone. A symmetrical structure shows zero dipole moment. Thus, dipole moment helps to predict the geometry of a molecules. Dipole moment values can be distinguish between cis- and trans- isomers, ortho, meta and pare-forms of a substance, etc. Q. A diatomic molecule has a dipole moment of 1.2D. If the bond length is 1.0times10^(-8) cm, what fraction of charge does exist each atom?

Polar covalent molecules exhibit dipole moment. Dipole moment is equal to the product of charge separation , q and the bond length d for the bond. Unit of dipole moment is debye. One debye is equal to 10^(-18) esu cm. Dipole moments is a vector quantity. It has both magnitude and direction. Hence, dipole moment of a molecule depends upon the relative orientation of the bond dipoles, but not on the polarity of bonds alone. A symmetrical structure shows zero dipole moment. Thus, dipole moment helps to predict the geometry of a molecules. Dipole moment values can be distinguish between cis- and trans- isomers, ortho, meta and pare-forms of a substance, etc. Q. Arrange the following compounds in increasing order of dipole moments, toluene (I), o-dichlorobenzene (II), m-dichlorobenzene (III) and p-dichlorobenzene (IV) :

A polar covalent bond with positive and negative charge centres at its ends is called a dipole. The polarity of a dipole is measured by its dipole moment. Mathematically it is expressed as dipole moment, mu=q xx d where q and d are the net charge and the distance between the two charges respectively. Dipole moment is a vector quantity. The net dipole moment of a polyatomic molecule is the resultant of the various bond moments present in the molecule. The values of dipole moment are expressed in Debye (D) or in SI units in terms of coulomb- metre (Cm). One of the most important applications of dipole moment is in the determination of geometry and shape of molecules besides prediction of a number of properties of the molecules. Which of the following has net dipole moment?

PRADEEP-ELECTROSTATICS-Exercise
  1. The electric lines of force are ……….. as against magetic lines of for...

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  2. Net charge on an electric dipole is ………….. .

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  3. Dipole moment is a …………. Quanity and its units are ……….. .

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  4. Field intensity due to a single charge varies inversely as ……….. of d...

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  5. If E(a) be the electric field strength of a short dipole at a point on...

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  6. The electric field due to an electric dipole is ……….. symmetric.

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  7. The torque acting on an electric dipole of moment p held at an angle ...

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  8. A small ball of paper has mass 9xx10^(-5) kg and carries a charge of ...

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  9. A water droplet of radius 1 micron in Milikan oil drop appartus in ...

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  10. Two point charges of +16 muC and -9 mu C are placed 8 cm apart in air...

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  11. A particle of mass m and charge q is thrown at a speed u against a uni...

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  12. A particle of mass m and charge q is released from rest in uniform el...

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  13. A charged ball of mass 8.4xx10^(16) kg is found to remain suspended i...

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  14. Two electric +q and +4q are placed at a distance 6a apart on a horizon...

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  15. Calculate the magnitude of the electric field which can just balanc...

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  16. In the electric field shown in figure, the electric field lines on the...

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  17. Eight identical point charges of q coulomb each are placed at the corn...

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  18. What are the magnitude and direction of the electric field at center o...

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  19. A charge of 4xx10^(-9)C is distributed uniformly over the circumferen...

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  20. Calculate the magnitude of the force, due to an electric dipole of di...

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