a catalyst
The presence of a catalyst in a reaction will lower the activation energy required to complete the reaction. The catalyst is not used up in the reaction, it is just there to speed it up.
The energy needed to get a reaction started is called activation energy.
Enzymes are catalysts, they reduce the activation energy.
Activation energy is the amount of energy needed to start a reaction.
Without an enzyme, the activation energy needed to start a reaction is much greater. An enzyme is a catalyst, which decreases the amount of activation energy needed to start a reaction. By doing so, it decreases the amount of time the chemical reaction takes place.
Activation Energy.
activation energy
The activation energy is decreased by a catalyst.
a spontaneous reaction
In chemistry it is called a catalyst. Enzymes decrease the activation energy needed to start a reaction.
The minimum amount of energy needed to start a chemical reaction is called the activation energy. It is the energy required to break the bonds in reactant molecules and initiate the reaction. Once this energy barrier is overcome, the reaction proceeds without additional energy input.
Activation energy