Interaction Potential Energy

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Emma Scholes 1L
Posts: 62
Joined: Fri Sep 28, 2018 12:18 am

Interaction Potential Energy

Postby Emma Scholes 1L » Wed Nov 07, 2018 11:18 am

What is interaction potential energy? Why is it always negative?

Fayez Kanj
Posts: 62
Joined: Fri Sep 28, 2018 12:18 am
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Re: Interaction Potential Energy

Postby Fayez Kanj » Wed Nov 07, 2018 11:30 am


Interaction potential energy is basically the attractive force (between different molecules). It is calculated using the equation:
Ep = - (polarizability of molecule 1)(polarizability of molecule 2) / (distance between atoms)^6

It is always negative because it is a force of ATTRACTION (energy is RELEASED when these bonds form). Conversely, the energy required to break the bond, the dissociation energy, is thus therefore always positive (energy is REQUIRED)

Hope this helps :)

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