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dissociation energy

Posted: Fri Nov 01, 2019 4:44 pm
by Elyssa Smith 4B
Why is disassociation energy always positive?

Re: dissociation energy

Posted: Fri Nov 01, 2019 5:00 pm
by Nathan Nakaguchi 1G
I'm not 100% on this but I believe Dissociation energy is always positive because breaking a bond will always require an input of energy, if it were to release energy dissociation energy would be negative but that can't happen because breaking a bond is going from a lower potential energy to a higher potential energy.

Re: dissociation energy

Posted: Fri Nov 01, 2019 5:13 pm
by jisulee1C
Dissociation energy is always positive because then dissociation energy is the energy required to break a bond and breaking a bond will always require an input of energy while forming bonds release energy.

Re: dissociation energy

Posted: Sun Nov 03, 2019 2:08 pm
by Frederick Keith_4C
Dissociation energy is defined as the energy needed to break every chemical bond in a molecule and completely separate all of its atoms. This bond-breaking process is endothermic as it requires an input of energy to do so, and will always result in a positive number.

Re: dissociation energy

Posted: Sun Nov 03, 2019 2:10 pm
by Ashley Kim 3F
Dissociation energy is always positive because you are inputting energy into the system, not taking it out.

Re: dissociation energy

Posted: Sun Nov 03, 2019 3:26 pm
by Bradley Whitworth 4B
Breaking a bond always requires some energy so dissociation energy is always positive.

Re: dissociation energy

Posted: Sun Nov 03, 2019 3:28 pm
by pauline young 1L
since you are trying to break bonds, energy is always required (its always going in) and therefore it is always going to be positive.

Re: dissociation energy

Posted: Sun Nov 03, 2019 8:48 pm
by kristi le 2F
Breaking a bond requires energy since bound atoms have lower energy than free atoms. Therefore, forming a bond releases energy.