0

Guest

Courses New

pls tell me about order and molecularity of the reactions

pls tell me about order and molecularity of the reactions

Grade:12

4 Answers

pralay
186 Points
8 years ago
THE SUM OF POWERS OF CONCENTRATION TERMS OF REACTANTS IS KNOWN AS ORDER OF REACTION
KALYAN
400 Points
8 years ago
order is nothing but sum of powers of concentration terms in the rate equation and molecularity is no. of moles in the rate determining step .order value may be zero ,fraction or integer but molecularity value is always an integer.
pcl5-------->pcl3 + cl2(uni molecular)
2HI---------->H2 + I2(bi molecular)
2CO + O2 ---------> 2CO2 (tri molecular)
2HI---------->H2 + I2(order = 2)
2NO + O2 ----------> 2NO2
R.GANGARAJU
68 Points
8 years ago
order:Sum of a concentration terms in a rate  law is called order
 molecularity:No of molecules involves in rate determining step is called molecularity.
SHANMUKESHWAR
461 Points
8 years ago
In chemical kinetics, the order of reaction with respect to a given substance (such as reactant, catalyst or product) is defined as the index, or exponent, to which its concentration term in the rate equation is raised.
The molecularity of a reaction is defined as the number of molecules or ions that participate in the rate determining step. A mechanism in which two reacting species combine in the transition state of the rate-determining step is called bimolecular.

Think You Can Provide A Better Answer ?

Other Related Questions on Physical Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More