All reactions require reactants to surpass a specific energy threshold called activation energy to produce products. This energy disparity lies between the transition state and the reactant molecules. While some reactants possess adequate kinetic energy to surmount this barrier, others do not.
Not all reactions occur at the same pace under normal circumstances due to varying activation energy requirements. To expedite these reactions, certain substances, known as catalysts, are introduced. Catalysts diminish the essential activation energy for the transformation of reactants into products, a process termed catalysis.
Catalysis involves enhancing the reaction rate through the utilization of a catalyst. These substances accelerate reactions without undergoing any chemical alterations themselves. Essentially, catalysts reduce the energy barrier necessary for the conversion of reactants into products.
Catalysis of chemical reactions can be broadly categorized into two main types:
Understanding the mechanism of heterogeneous catalysis involves a five-step process according to the modern theory of adsorption:
This mechanism illustrates how catalysts facilitate chemical reactions by providing an active surface for reactants to interact, leading to the formation of products.
Wilkinson's Catalyst is a notable example in catalysis.
For a comprehensive discussion on the catalysis of chemical reactions, refer to EduRev.
Test your knowledge on catalysisQ5Test your comprehension by answering multiple-choice questions. Click 'Start Quiz' to begin!
Choose the correct answer and click 'Finish' to evaluate your score and review answers.
Congratulations!
For Chemistry-related inquiries and study materials, visit EduRev.
0 out of 0 are wrong0Request OTP for verification.
FREE
Signup
Play
&
Win
195 videos|213 docs|157 tests
|
|
Explore Courses for EmSAT Achieve exam
|