Activation energy describes the energy that is required to get chemical reactions started.
activation energy
Because of the very very high temperature and pressure required to get them started.
If what you get is the same, chemically, as what you started with, then no, it's not a chemical reaction (be careful to take side effects into account: a series of reactions can yield the same molecule you started with, but make changes in other molecules in the process). If it's not chemically identical, then even if the properties are similar, it IS a chemical reaction.
If your question is ''What causes the activation energy required in a chemical reaction to lower down?'' Then my answer to your question would be that the temperature factor is either more than to what the enzymes needed or less than what is needed by the enzymes to function. However the optimum temperature mostly for an enzyme to be active at the fullest can be till 40 degrees Celsius.
An exothermic reaction releases energy, usually to the surroundings. There is a net loss of energy from the reactants. However, exothermic reactions also need a little energy to get started, but this is less than the eventual amount given out. An endothermic reaction takes in energy, also usually from the surroundings. There is a net gain of energy into the reactions. Again, a little energy is lost, but this is hardly anything compared to the amount taken in.
Chemical change because its form is a new state then what it was when it started (:
Activation energy describes the energy that is required to get chemical reactions started.
Activation energy describes the energy that is required to get chemical reactions started.
All chemical reactions need a certain amount of activation energy to get started.
enzymes
when something undergoes a chemical reaction, its properties may change. meaning the properties could be different than whhat they started off as.
Because of the very very high temperature and pressure required to get them started.
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.
If what you get is the same, chemically, as what you started with, then no, it's not a chemical reaction (be careful to take side effects into account: a series of reactions can yield the same molecule you started with, but make changes in other molecules in the process). If it's not chemically identical, then even if the properties are similar, it IS a chemical reaction.
They are chemical substances which are different from those that you started with.
so the reaction can get started
It is technically challenging to create these reactions safely and efficiently.
A battery produces energy by converting energy released during chemical reactions into electrical energy. The chemical reactions are usually Redox reactions( reduction and oxidation reactions).A typical consists of 2 half cells - one where Oxidation takes place, the other reduction.The exchange of electrons in the reactions is through an external circuit- that's where you get your electricity.A battery produces energy by converting energy released during chemical reactions into electrical energy. The chemical reactions are usually Redox reactions( reduction and oxidation reactions).A typical consists of 2 half cells - one where Oxidation takes place, the other reduction.The exchange of electrons in the reactions is through an external circuit- that's where you get your electricity.