LINK TO INTERACTION: https://media.pearsoncmg.com/aw/aw_0media_physics/phet/html
ID: 571994 • Letter: L
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LINK TO INTERACTION: https://media.pearsoncmg.com/aw/aw_0media_physics/phet/html5/atomic-interactions_en.html
Part A The graph that compares the distance between atoms versus the potential energy of the atoms is known as the potential energy curve. This potential energy curve shows how the potential energy of the system changes as the two atoms come together to form a chemical bond. This curve is unique for every set of atoms that form a bond. In the potential energy curve created for you in the simulation, consider the gray line (double headed arrow) to be a potential energy of zero. The potential energy is negative below the gray line and positive above the gray line. When you have selected the Custom Attraction feature, the horizontal green line at the potential energy minimum (at lowest potential energy) indicates where a chemical bond is formed. The bond length is the distance between the two atoms when the potential energy is lowest in the potential energy curve. Expand the "Forces" tab by clicking the + symbol, then click the the Total Force radio button to see the force experienced by the atoms. When the green arrows point toward each other, this indicates attraction. When the green arrows point away from each other, this indicates repulsion Select any atom pair, and move the position of the rightmost atom toward the pinned atom. According to your observations, which of the following statements are correct? Check all that apply Hints O A stable bond is formed when the potential energy is zero. O The potential energy increases as attractive forces exceed repulsive forces. O The potential energy decreases as repulsive forces increase. O The bond length is the distance between the atoms when the potential energy is at its lowest point. O When two atoms are very far apart, the potential energy is zero Submit My Answers Give UpExplanation / Answer
Answer part A-
A stable bond is formed when potential energy is at its minima so option A is incorrect.
The potential energy decreases as attractive forces exceed repulsive forces (attraction means release of energy) so option B is incorrect
The potential energy increases as repulsive forces increases so option c is incorrect
The bond length is the distance between the atoms when the potential energy is at lowest point. This is correct as it is the point where a stable bond is form
When two atoms are very far apart, the potential energy is zero. This is correct as there will be no interaction between the atoms so potential energy will be zero.
Answer part B
Point E= two atoms from the infinity start to come closer so potential energy tend to decrease
Point D= two atoms tend to form bond due to attractive forces between them therefore the energy release
Point C= the two atoms are in bonded state and the potential energy is at its minima
Point B= on further decreasing the distance between the two atoms the internuclear repulsive forces come into picture due to which the potential energy increases
Ponit A= decreasing the distance furthermore, the repulsive forces exceeds the attractive forces
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