The potential energy U between two molecules | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The force $F$ between two molecules is related to the potential energy $U$ by the relation $F = -\frac{dU}{dx}$.In the region $BC$,the slope of th

Vedclass · Accepted Answer

Attracted when $x$ lies between $B$ and $C$ and are repelled when $X$ lies between $A$ and $B$

Vedclass · Answer

(B) The force $F$ between two molecules is related to the potential energy $U$ by the relation $F = -\frac{dU}{dx}$.In the region $BC$,the slope of the graph $\frac{dU}{dx}$ is positive.Therefore,$F = -(	ext{positive}) = 	ext{negative}$,which means the force is attractive in nature.In the region $AB$,the slope of the graph $\frac{dU}{dx}$ is negative.Therefore,$F = -(	ext{negative}) = 	ext{positive}$,which means the force is repulsive in nature.Thus,the molecules are attracted when $x$ lies between $B$ and $C$ and are repelled when $X$ lies between $A$ and $B$.

Column-$I$	Column-$II$
$(a)$ Graph $A$	$(i)$ $A$ is ductile
$(b)$ Graph $B$	$(ii)$ $A$ is brittle
	$(iii)$ $B$ is ductile
	$(iv)$ $B$ is brittle

The potential energy $U$ between two molecules as a function of the distance $X$ between them is shown in the figure. The two molecules are

Similar Questions

Which one of the following is the Young's modulus (in $N/m^2$) for the wire having the stress-strain curve shown in the figure?

$A$ stress-strain graph for a metal is shown. The part in which Hooke's law holds good is

In the given stress-strain graph,what does point $D$ indicate?

In Column-$I$ there are two stress-strain graphs,and in Column-$II$ the nature of the materials is given. Match them appropriately:
Column-$I$ Column-$II$
$(a)$ Graph $A$ $(i)$ $A$ is ductile
$(b)$ Graph $B$ $(ii)$ $A$ is brittle
$(iii)$ $B$ is ductile
$(iv)$ $B$ is brittle

The stress-strain curves for brass,steel,and rubber are shown in the figure. The lines $A, B,$ and $C$ correspond to:

Vedclass Test Series

Exam Paper Generator

Online Exam Module