Work, Power and EnergyHard
Question
The potential energy function for the force between two atoms in a diatomic molecule is approximately given by U(x) = 
where a and b are constants and x is the distance between the atoms. If the dissociation energy of the molecule is D = [U(x = ∞) - Uat equilibrium], D is
where a and b are constants and x is the distance between the atoms. If the dissociation energy of the molecule is D = [U(x = ∞) - Uat equilibrium], D isOptions
A.
B.
C.
D.
Solution
U(x) = 
U(x = ∞) = 0
as,
at equilibrium, F = 0
∴
∴ Uat equilibrium =
∴ D = [U(x = ∞) - Uat equilibrium] =
U(x = ∞) = 0
as,
at equilibrium, F = 0
∴
∴ Uat equilibrium =
∴ D = [U(x = ∞) - Uat equilibrium] =
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
Length of a simple pendulum is l and its maximum angular displacement is l, then its maximum K.E. is :...A 1 Kg ball falls from a height of 25 cm and rebounds upto a height of 9 cm. The co-efficient of restitution is -...The retarding force required to reduce velocity of a 3 kg body from 0·75 m/s to 0·25 m/s in 0·02 sec will be -...A position dependent force, F = 7 - 2x + 3x2 N,acts on a small body of mass 2 kg and displaces it from x = 0 to x = 5m. ...A graph of potential energy V ( x ) verses x is shown in figure. A particle of energy E0 is executing motion in it. Whic...