Flag Physical Chemistry> Sigma bond strengths S-S, S-P, P-P [close...
question mark

Sigma bond strengths S-S, S-P, P-P [closed]?

putus , 11 Years ago
Grade 11
anser 4 Answers
sumit kumar
Strength of bonds depends on its bond length. Smaller the length of bond, higher will be its strength.
First of all let me tell you that all the sigma bonds are more stronger than pi bonds. This is because sigma bonds are formed by head on overlapping of the orbitals which are more effective than the sideway overalapping of orbitals in case of pi bonds.
Sigma bonds are further classified as s-s , s-p & p-p bonds.
s-s bonds are formed by overlapping of two s orbitals.
p-p sigma bond is formed by overlapping of two p orbitals and
s-p sigma bonds are formed by overlappig of one s and one p orbita.
246-1315_sigma-bond-formation-s-s-overlep-s-p-overlap-pz-pz-overlap.gif
as it is clear from the above image that the order of bond lengths is s-s < s-p < p-p
so, order of bond strengths iss-s > s-p > p-p
Thanks & Regards
Sumit Kumar
askIITians Faculty
Last Activity: 11 Years ago
farooq anwar
s-s
Last Activity: 6 Years ago
Krish Gupta
 
Strength of bonds depends on its bond length. Smaller the length of bond, higher will be its strength.
First of all let me tell you that all the sigma bonds are more stronger than pi bonds. This is because sigma bonds are formed by head on overlapping of the orbitals which are more effective than the sideway overalapping of orbitals in case of pi bonds.
 
Sigma bonds are further classified as s-s , s-p & p-p bonds.
s-s bonds are formed by overlapping of two s orbitals.
p-p sigma bond is formed by overlapping of two p orbitals and
s-p sigma bonds are formed by overlappig of one s and one p orbita.
246-1315_sigma-bond-formation-s-s-overlep-s-p-overlap-pz-pz-overlap.gif
The answer is very well explained and 
 
it is clear from the above image that the order of bond lengths is s-s
so, order of bond strengths is : s-s > s-p > p-p
 
Thanks & Regards
Krish Gupta
askIITians Faculty
Last Activity: 5 Years ago
Mukesh Dhaker
s-s
Because energy of all orbital are same , now directional nature of orbital is dominant , hence we know p orbital is more directional than s orbital 
Last Activity: 5 Years ago
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments