|Chemical Reaction Engineering
|Chemical Reaction Types
Isomerisation is the chemical reaction in which a chemical reactant undergoes a structural rearrangement and no change in its net atomic composition;
Direct combination or synthesis
Direct combination is the chemical reaction in which 2 or more chemical reactant combined to form a more complex product:
Example : N2 + 3 H2 ? 2 NH3
Chemical decomposition or analysis
Chemical decomposition is the chemical reaction in which reactant is decomposed into smaller compounds or elements: >
Example : 2 H2O ? 2 H2 + O2 >
Single displacement or substitution,
Single displacement is the chemical reaction in which reactant is displaced out of a compound by a more reactive element: >
Example : 2 Na(s) + 2 HCl(aq) ? 2 NaCl(aq) + H2(g)
Metathesis or double displacement reaction>
Double displacement is the chemical reaction in which reactant exchange ions or bonds to form different compounds: >
Example: NaCl(aq) + AgNO3(aq) ? NaNO3(aq) + AgCl(s)
Chemical Kinetics deal with the rate of a chemical reaction and it is the measure of involvement of substance changes with Pressure , Temperature etc.
Rates of reaction depends on following parameters:
Pressure: by decreasing the pressure, we can increase the volume between molecules. This will decrease molecule collisions frequency.
Activation energy: It is defined as the required energy to make the reaction start. Lower the activation energy implies that the reactants need lesser energy to start. Temperature: Higher temperature leads to higher activation energy and hence leads to higher collision.