0
"This is a difficult question to answer exactly since (1) potential
energy is not something that is directly measured - it can only be
deduced from the heats produced or absorbed in a transformation, and
(2) the heat produced or absorbed (enthalpy) in a chemical
transformation vary from substance to substance.
In general, we expect that when chemical bonds are formed, energy is
released - imagine the individual atoms as having energy and have to
be slowed down in order that chemical bonds can form. Alternatively,
and more accurately, when two atoms spontaneously form a chemical
bond it must mean that the entropy of this system has increased,
since two separate atoms have more disorganization (entropy) then
one complete molecule, then in order for the process to be
spontaneous (entropy increases), there must be some heat released.
The problem now is relating heat to potential energy. I would rather
you relate this to internal energy rather than potential energy
(which is not quite directly applicable to chemical systems). If we
think of internal energy, we know, by definition, that internal
energy is a function of the heat and work that goes in and out of
the system. Since most chemical transformations do not involve work,
then internal energy is mostly a function of the heat that enters or
leaves the system.
Thus, when a chemical bond is formed spontaneously, heat leaves the
system, the internal energy of the system goes down. You may then
think of internal energy as a kind of potential energy and say that
because the system is less energetic (since heat left the system)
that it must now have a lower potential energy."
Wiki User
∙ 6y ago
Wiki User
∙ 9y agoEnergy can be released or absorbed when various chemical bonds form or are broken. Exothermic reactions release energy in the form of heat whereas endothermic reactions absorb energy.
Wiki User
∙ 10y agoenergy in the form of heat.
Wiki User
∙ 8y agoHeat can be absorbed or released.
Wiki User
∙ 12y agoEnergy
Wiki User
∙ 11y agoEnergy.
Matthew Barrientos
ENergy
Add your answer:
Earn +20 pts
Substances are changed into different substances when bonds break and form during?
Chemical bonds are made and broken by chemical reactions. After chemical bonds have been broken, then energy is released, and if a chemical bond is made, then energy is absorbed.
What substance helps make or break a chemical bond?
A chemical reaction involves the making and breaking of strong chemical bonds. Explanation: Chemical reactions are characterized by the formation of new substances, and the making and breaking of strong chemical bonds. In practice it is usually fairly easy to discriminate between a chemical change, new substances formed, and a phase change, where bonds may have been broken but no new substances formed. Examples of chemical reactivity where chemical bonds are manifestly formed include hydrocarbon combustion, the which drives our industrial society, and in which C − C and C − H bonds are clearly broken, and O − H and C O bonds are clearly formed in the products.
Can compounds be broken up?
By definition, a compound can, somehow, be broken down into its elements. Whether this process is easy depends on the strength of the chemical bonds in the compound and the definition of "easy"!
Contrast the forming and breaking of chemical bonds in terms of energy changes?
The formation of chemical bonds releases energy. It is an exothermic process. The breaking of chemical bonds takes energy. It is an endothermic process.
Difference between physical change and chemical change?
First let me define covalent and non-covalent bonds.Covalent bonds are bonds BETWEEN the atoms of a chemical - the atoms share electrons.Noncovalent bonds are the interactions between atoms (and chemicals) that do NOT involve sharing of electrons. (hydrophobic, hydrophilic, and ionic bonds are non-covalent bonds)Physical Change: breaking wood in half, melting ice, deflating a balloon, heating/cooling something (burning NOT included), dissolving something (as long as it does not react with solvent). Physical changes do not make or break covalent bonds. Physical changes only break/make non-covalent bonds (such as hydrophobic, ionic or hydrogen bonds).Chemical Change: burning something, changing the actual chemical makeup in any way - usually by reactions like redox (reduction-oxidation reactions), decomposition and combustion reactions among others. Chemical changes do make and/or break covalent bonds. If the breaking and/or making of covalent bonds occurs - the change is chemical - since you are actually changing the chemical into something new.
What chemical is released when chemical bonds of glucose are broken?
ATP
How is stored chemical energy released?
It is stored in bonds and released in energy. Energy is needed to break the chemical bonds, and energy is released when bonds are broken.
How energy is made available by chemical reaction?
in chemical reactions, energy is absorbed or released when chemical bonds are broken and new ones are formed.
What energy is released when the chemical bonds glucose are broken?
ATP
Chemical energy is released when the bonds of molecules are broken?
true
True or false when a bond is broken in a chemical reaction heat energy is released?
It is true that when bonds are broken there is chemical reaction. Then heat energy is released.
Chemical bonds have a large amount of that is released when the bond is broken?
energy
What is released when chemical bonds are broken but cannot produce ATP?
Heat
Which reaction occurs when energy is released?
Chemical bonds are broken.
Is it true that Chemical bonds contain energy that can be released when they are broken?
nah mate
What is a chemical reaction that harvests energy when chemical bonds are broken?
It always takes energy to break chemical bonds. Similarly, energy is released when bonds are formed. When the new bonds formed are weaker than the old ones broken, the reaction consumes energy and is called endothermic.
Substances are changed into different substances when bonds break and form during?
Chemical bonds are made and broken by chemical reactions. After chemical bonds have been broken, then energy is released, and if a chemical bond is made, then energy is absorbed.
