My Potential & Kinetic Energy of Molecules

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Discussion Overview

The discussion centers around the types of energy stored in molecules, specifically addressing potential and kinetic energy forms relevant to molecular and electronic states. The context includes a chemistry homework question regarding energy storage mechanisms in molecules.

Discussion Character

  • Homework-related, Conceptual clarification, Technical explanation

Main Points Raised

  • One participant lists four types of energy: rotational energy, vibrational energy, translational energy, and nuclear energy, seeking confirmation of their correctness.
  • Another participant questions whether the inquiry pertains specifically to the energy storage by electrons in a molecule.
  • A later reply clarifies that electrons do not possess translational, rotational, or vibrational energy, as these are properties of atoms or molecules. It also states that nuclear energy is not relevant for electrons.
  • This reply further explains that electrons have transitional energy related to electronic state transitions and emphasizes that kinetic energy includes translational, vibrational, and rotational forms.
  • The discussion touches on the distinction between potential and kinetic energy in the context of molecular energy storage.

Areas of Agreement / Disagreement

Participants express differing views on the classification of energy types, particularly regarding the role of electrons and the definitions of kinetic and potential energy in molecules. No consensus is reached on the initial claims about energy types.

Contextual Notes

There are limitations in the definitions and classifications of energy types, particularly concerning the role of electrons in energy storage and the distinction between kinetic and potential energy. The discussion does not resolve these ambiguities.

fallenrose
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hi I'm taking chemistry through correspondence and just need to make sure iam answering this question rite. can someone please look over it and let me know. thanks.

list four ways in which energy can be stored in a molecule.

my answer- rotational enery, vibrational energy, transitional energy and nuclear energy.

which are potential

my answer- rotational and nuclear

kinetic are vibrational and tranistional
 
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Are you being asked about the storage of energy by an electron in a molecule?
 
yes that's right
 
Electrons don't have translational, rotational or vibrational energy. That type of energy is a property of atoms or molecules. Electrons don't have nuclei so nuclear energy is not important. Electrons do have transitional energy, the energy given off or absorbed when electrons are promoted to or relax from higher energy electronic states.

If the question is concerned with molecules, then kinetic, potential, nuclear energy are valid. Kinetic energy is defined as the energy of motion (translational, vibration, rotational).

You seem to have a handle on the nuclear energy (potential) but what type of energy do you think is involved in an electronic transition?
 

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