ASSIGNMENT OF CHEMISTRY
Subject : fundamental Physical chemistry
Submitted to : Sir Jawaad habbib
Submitted by : Iqra saddique
Class : BS zoology (3rd )
Roll no : 613
Course code : CHM (401)
Topic : Kinetic Expression for zero
Order reaction with example
PANJAB GROUP OF GOLLEGES
JARWALA
CONTENT:
Definition
Explanation with expression
Characteristics
Example
Reference
Zero Order of Kinetic:
DEFINITION:
A zero order reaction has a constant rate that is
independent of the consentration of the reactants (s); the rate y law is
simply rate= K
A reaction is zero order if consentration of data is plotted versus time
and the result is a straight line.
EXPLANATION WITH EXPRESSION:
Cnsider the following Reaction.
The rate of reaction can written as;
X is the consentration of formed product.
Upon integration, we get
However , derivation d and integration cancelle out to each other.
According to rule of log of natural integration.
Start of reaction when t=0 , no product is found,i.e.,X=0,then constant
Z is zero.
Equation 4 is the rate of expression of zero order reaction.It tell us that
ty rate of zero order reaction is independent of the consentration of
present reactants.
CHARACTERISTICS:
The products of consentration is directly proportional to the time.
A graph x vs t for such a reaction would given a straight line passing
through the origin and gradient is the rate constants.
The importan characteristics of zero orders kinetic is half life witch is
proportional to the initial consentration of reactants.
Half life is defined as the time reducing the consentration of their
original value.
EXAMPLE
Example of zero order reactions:
Rate of the decomposition can be described mathematically as:
Loss of the multi- sulfa drugs.
REFERENCE:
GOOGLE : byjus.com
BOOK:
A text of physical chemistry
THANK YOU 😊😊