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What would happen if there wasn't enough activation energy in a chemical change?
Wiki User
∙ 11y ago
If the activation energy for a particular chemical reaction was not available the reaction cannot proceed. The chemical reaction cannot proceed without activation energy and cannot form products.
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoThe chemical reaction would decrease or stop causing organ and or tissue damage. It is genetic and passed to offspring causing a disease process.
Wiki User
∙ 8y agoThis is an exothermic chemical reaction, heat is produced.
Wiki User
∙ 11y agoThere will be no chemical change.
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Activation energy barriers?
The activation energy is the amount of energy needed to start a reaction. If the reactants have less than that amount the reaction will not occur. In this way it acts as a barrier that prevents a reaction unless there is enough energy to break it.
With Reference to molecular collision theory explain what activation energy is?
Collision theory states that when suitable particles of the reactant hit each other, only a certain amount of collisions result in a perceptible or notable change; these successful changes are called successful collisions. The successful collisions must have enough energy, also known as activation energy, at the moment of impact to break the pre-existing bonds and form all new bonds. This results in the products of the reaction. Increasing the concentration of the reactant brings about more collisions and hence more successful collisions. Increasing the temperature increases the average kinetic energy of the molecules in a solution, increasing the amount of collisions that have enough energy. Collision theory was proposed independently by Max Trautz in 1916 and William Lewis in 1918.
Activation energy is the energy required to do what?
For the substance(s) to react
Why don't all collisions between reactant molecules lead to product formation?
For most reactions, chemical reaction requires that molecules acquire greater than average energy. This is called the "activation energy", and only some collisions impart a sufficient amount of energy.
What group on the periodic table does not form bonds?
With enough activation energy any group can form bonds but the group that needs the most activation energy is the noble gases.
Does a chemical reaction always require energy to start?
Yes, every chemical reaction requires activation energy, though in some cases the ambient heat of room temperature is enough to provide that energy.
Activation energy barriers?
The activation energy is the amount of energy needed to start a reaction. If the reactants have less than that amount the reaction will not occur. In this way it acts as a barrier that prevents a reaction unless there is enough energy to break it.
With Reference to molecular collision theory explain what activation energy is?
Collision theory states that when suitable particles of the reactant hit each other, only a certain amount of collisions result in a perceptible or notable change; these successful changes are called successful collisions. The successful collisions must have enough energy, also known as activation energy, at the moment of impact to break the pre-existing bonds and form all new bonds. This results in the products of the reaction. Increasing the concentration of the reactant brings about more collisions and hence more successful collisions. Increasing the temperature increases the average kinetic energy of the molecules in a solution, increasing the amount of collisions that have enough energy. Collision theory was proposed independently by Max Trautz in 1916 and William Lewis in 1918.
Which molecules lower the activation energy?
Enzymes lower the activation energy of reactions.The activation energy of a reaction is the amount of energy that has to be put into the system before the reaction proceeds of its own accord. It is like setting fire to a log. First you must supply enough energy by burning a match, paper, kindling, and so on, until the log is hot enough to catch and continue burning on its own. This energy that you supply is the activation energy.When an enzyme is present, the activation energy is lower, and so the reaction proceeds more readily at the temperature of the organism. A concept known as the induced-fit modelexplains how enzymes lower activation energy, by suggesting that the interaction of a substrate with an active site on the surface of the enzyme causes a change in the enzyme's shape, which in turn affects the substrate in such a way as to encourage the reaction.
Activation energy is the energy required to do what?
For the substance(s) to react
Describe the structure and function of enzymes?
Catalyst increases the rate of reaction without being consumed by it. In addition, while the catalysts lower the activation energy, it does not change the energies of the original reactants nor products. Rather, the reactant energy and the product energy remain the same and only the activation energy is altered.The key importance of activation energy is that collisions only result in a reaction if the particles collide with enough energy to get the reaction started. This minimum energy required is called the activation energy for the reaction.
Why don't all collisions between reactant molecules lead to product formation?
For most reactions, chemical reaction requires that molecules acquire greater than average energy. This is called the "activation energy", and only some collisions impart a sufficient amount of energy.
How does an atom react at low temperatures?
Chemical reactions require what is known as an "activation energy" to get started; if the reaction is exothermic, it may produce enough energy that it becomes self-sustaining. At lower temperatures there is less energy available, and so atoms are less likely to engage in chemical reactions.
What group on the periodic table does not form bonds?
With enough activation energy any group can form bonds but the group that needs the most activation energy is the noble gases.
Which has the highest activation energy?
If the activation energy of a reaction is high, then it requires a large amount of energy to initiate the reaction. The situation arising when a spontaneous reaction has a large activation energy is similar to rolling a ball over a hill. At first, energy must be expended to move the ball to the crest of the hill (or, in the case of a reaction, impart enough energy to the molecules so that their bonds can be sufficiently weakened). However, once the ball is at the top of the hill, it rolls down on its own. This is analogous to the reforming of chemical bonds, which releases energy. High activation energies are typical when a reaction involves molecules whose bonds are strong.
What is the change in matter that produces one or more new substances?
Change in the nucleus of an elemental atom will change or break the atom. Change in the number of electrons in an atom will change its charge. Change in the number of the electrons in a molecule will change its charge and possibly will change its shape, or may break it. New chemicals can be made through combinations of other chemicals. Shooting photons at an atom or a molecule can change something about the atom or molecule, if the photon has the right energy and 'hits' it properly. It is also possible, under appropriate conditions, that a photon of high enough energy shot by an atom will convert into an electron (matter) and a positron (antimatter).
What types of energy can cause a chemical reaction to take place?
There are several sources of energy that could provide the activation energy needed for a chemical reaction to take place. Usually it is thermal energy, but photoexcitation (excitement by light energy) and electrochemical activation (excitement by electricity) are also commonly used.
