Basics
What is Unit Operations
These refer to physical changes or transformations that do not alter the chemical composition of substances
Classify of chemical reactions based on the number of phases involved
•Homogeneous reactions and
•Heterogeneous reactions.
what is single reaction.
When a single stoichiometric equation and single rate equation are chosen to represent the progress of the reaction
what is molecularity
The molecularity of an elementary reaction is the number of molecules involved in the reaction
What is Unit Processes
These refer to chemical changes or reactions that result in the conversion of raw materials into products.
what is Homogeneous reactions
A reaction is homogeneous if it takes place in one phase alone.
What is multiple reactions
When more than one stoichiometric equation is chosen to represent the observed changes, then more than one kinetic expression is needed to follow the changing composition of all the reaction components, and we have multiple reactions
Rate of reaction is function of ______
Concentration and temperature
Give one example for Unit Operations
any one of the example given below
•Distillation
•Evaporation
•Heat exchange
•Drying
•Mixing
•Crystallization
What is Heterogeneous reactions
A reaction is heterogeneous if it requires the presence of at least two phases to proceed at the rate that it does.
what is elementary reactions
reactions in which the rate equation corresponds to a stoichiometric equation are called elementary reactions.
What is order of the reaction
the sum of the powers of concentrations terms in the rate expression is called order of the reaction
Give one example for Unit Processes
•Nitration
any one of the example given below
•Hydrogenation
•Oxidation
•Sulfonation
•Polymerization
•Fermentation
define catalyst
The catalytic reaction whose rate is altered by materials that are neither reactants nor products.
What is nonelementary reactions
When there is no direct correspondence between stoichiometry and rate, then we have nonelementary reactions
the molecularity refers only to____________
an elementary reaction