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The potential energy function for the fo...

The potential energy function for the force between two atoms in a diatomic molecule is approximate given by `U(r) = (a)/(r^(12)) - (b)/(r^(6))`, where `a` and `b` are constants and `r` is the distance between the atoms. If the dissociation energy of the molecule is `D = [U (r = oo)- U_("at equilibrium")],D` is

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The correct Answer is:
`[(6v_(0))/a{2(a/r)^(13)-(9/r)^(7)},2^(1//6)a]`
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PHYSICS GALAXY - ASHISH ARORA-WORK, ENERGY AND POWER-Practice Exercise
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  2. A particle is suspended from a fixed point by a string of length 5m. I...

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  3. A stunt pilot in an airplane diving vertically downward at a speed of ...

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  4. A particle of mass m initially at rest starts moving from point A on t...

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  5. A space station 960 m in diameter rotates fast enough that the artific...

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  6. Calculate the angle of banking required for a curve of 200 m radius so...

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  7. A liquid is kept in a cylindrical vessel which is rotated along its ax...

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  8. A sleeve A can slide freely along a smooth rod bent in the shape of a ...

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  9. A hemispherical bowl of radius R=0.1m is rotating about its own axis (...

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  10. A smooth light horizontal rod AB can rotate about a vertical axis pass...

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  11. An ideal massless spring S can compressed 1.0 m in equilibrium by a fo...

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  12. A particle of mass 0.5kg travels in a straight line with velocity v=ax...

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  13. A block of mass m attached with a massless spring of force constant k ...

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  14. The potential energy function for the force between two atoms in a dia...

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  15. A bob tied to the end of a string of length 2m, other end of which is ...

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  16. In a spring gum having spring constant 100 N//m a small ball of mass 0...

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  17. A chain AB of length equal to the quarter of a circle of radius R is p...

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  18. A particle of mass m approaches a region of force starting from r=+inf...

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  19. A particle moving in a straight line is acted by a force, which works ...

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  20. The potential energy function of a particle in a region of space is gi...

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