CHEN3010 Lecture Notes - Lecture 11: Rate Equation, Reaction Rate

• School: Curtin University
• Department: Chemical Engineering
• Course: CHEN3010
• Professor: Gia Hung Pham

Document Summary

Objective: pseudo-steady state hypothesis (pssh, apply the pssh to develop rate laws for chemical reactions that do not follow elementary rate laws. The reaction takes place via a number of elementary steps. An active intermediate reacts as fast as it is formed. The rate law of the reaction was found from experimental work, as follows: The rate of formation of ethane is first order at high cazo. The rate of formation of ethane is second order at low cazo. Based on the experimental results, the rate law of the reaction is proposed. Step 4: write rate of formation of product. Step 5: write net rate of formation of the active intermediate and use the pssh. Step 6: eliminate the concentration of the active intermediate in the rate law. The rate law agrees with the experimental data. Find the reaction rate law of the following reaction. At low no concentration, the reaction rate decreases with increasing temperature.