Is energy released or absorbed while a bond breaks?

Answer 1

Energy is released because bonds store energy.

Answer 2

Energy is absorbed when bonds break. The energy required to break the bonds is absorbed from the surroundings. This is proven when you put ice in a drink. When the ice melts it breaks the hydrogen bonds of the ice and that takes the heat (energy) from your drink. Or imagine stretching a rubber band until it breaks. You must do work to stretch the band because the tension in the band opposes your efforts. You lose energy; the band gains it. Something similar happens when bonds break in a chemical reaction.

Answer 3

As a general rule when dealing with bond energies, it is said that bonds absorb energy when formed and release energy when broken. This is how one can use bond energies to calculate heat of reactions. The process is very similar to using Hess's Law with Heats of Formation.

Below is a link to a site showing how we use bond energies for this purpose.

Answer 4

It *takes* energy to break a bond. Energy is absorbed. It is an endothermic process.

Bond-breaking takes energy. Bond-making gives off energy.

Answer 5

Think of the bond as a spring that holds atoms together. When you break the bond, that energy is released

Answer 6

Bond breaking is energy release. Bond forming requires energy put in. For example, our bodies break the bonds in ATP (between phosphates) to get energy to form bonds elsewhere.

Answer 7

Normally it takes energy to break bonds. When atoms are further apart, they have lots of potential energy. As they come together, they have kinetic energy, that's let off that energy as sound, color, or something else. So the opposite is true...they have to take in energy to break those bonds.

Answer 8

You would think energy is released when the bond is broken, but actually energy is used.
You would think energy is used to make bonds, but actually energy is released.

Just remember this, it is not as your brain first finds logical.

Answer 9

Metriccq, DeltaS stuff is all super in terms of understand-how deltaG and the opportunity of a reaction going forward. yet the place is the flexibility (electromagnitic stuff) in ATP? Do the electrons interior the oxygen of ADP circulate to a decrease power point while the gamma P splits off from ATP, for this reason giving off power? How and the place is the flexibility saved? It would desire to be approximately electrons vibrating at diverse frequencies in diverse states, precise?

Answer 10

it depends on the activation energy if this is low the the reaction gives out energy in the form of heat,exothermic, If it is high it takes in energy, endothermic.