Information AboutAutocatalytic |
| CATEGORIES ABOUT AUTOCATALYSIS | |
| chemical processes | |
| chemical kinetics | |
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A ''set'' of chemical reactions can be said to be "collectively autocatalytic" if a number of those reactions produce, as reaction products, catalysts for enough of the other reactions that the entire set of chemical reactions is self sustaining given an input of energy and food molecules (see Autocatalytic Set ). RATE LAW IN AUTOCATALYTIC REACTIONS The Rate Law for the first order autocatalytical reaction is . The concentrations of A and B vary in time according to . The graph for these equations is a Sigmoid Curve , which is typical for autocatalytical reactions: these chemical reactions proceed slowly at the start because there is little catalyst present, the rate of reaction increases progressively as the reaction proceeds a the amount of catalyst increases and then it again slows down as the reactant concentration decreases. If the concentration of a reactant or product in an experiment follows a sigmoid curve, the reaction is likely to be autocatalytic EXAMPLES OF AUTOCATALYTIC REACTIONS EXTERNAL LINKS
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