Which bond has the strongest bond dissociation energy?

Si-F bond
The strongest bond dissociation energy is for the Si-F bond. The weakest energy is for a covalent bond and is comparable to the strength of intermolecular forces.

On what factors does bond dissociation energy depend?

A high bond dissociation energy means that the bond (and molecule) is of low energy and stable. Bond energies depend on the number of bonds between atoms. Even though π bonds are weaker than σ bonds, a double bond, which consists of a σ and π is bond, is stronger than a single bond because there are two bonds.

Is the bond dissociation enthalpy of all the four CH bonds in ch4 same give reason in support of your answer?

No because after breaking of C-H bonds one by one, the electronic environments change. The reported value is the average of of the bond dissociation energies of the four C-H bonds.

What type of bonds is broken in dissociation?

The homolytic bond dissociation energy is the amount of energy needed to break apart one mole of covalently bonded gases into a pair of radicals. The SI units used to describe bond energy are kiloJoules per mole of bonds (kJ/Mol).

Which has higher bond dissociation energy?

In diatomic molecules specifically, it is equal to the value of bond energy. The bond between silicon and fluorine is said to have the strongest bond dissociation enthalpy. Covalent bonds between atoms or molecules are said to have weak bond dissociation energies.

What is the difference between dissociation energy and bond energy?

The key difference between bond dissociation energy and bond energy is that bond energy is the average amount of energy required to break down all the bonds in a compound between the same two types of atoms while bond dissociation energy is the amount of energy needed to break down a particular bond via homolytic …

Which has highest bond dissociation enthalpy?

The chlorine atom has the lowest size among all hence it will have the highest bond dissociation enthalpy.

Why are the bond energies of all of the CH bonds in methane CH4 not equal?

No because after breaking of C–H bonds one by one, the electronic environments change. The reported value is the average value of the bond dissociation energies of the four C–H bonds.

Why all bonds in CH4 are equal?

As in case of CH4, all surrounding H-atoms have equal electronegativity, so they contribute equal sharing with four valence electrons of C leaving behind no lone pair/pairs. That’s why all 4 bonds in CH4 are equal. .

Which carbon halide bond has the highest bond energy per mole?

The bond energies of F-F ,C-C,N-N and O-O bonds are 33, 80 , 39 and 34.2 kJ/mole respectively. Therefore molecule of C-C has the highest bond energy .

How bond enthalpy differs from bond-dissociation enthalpy explain by giving an example?

– Bond Dissociation Enthalpy is the enthalpy change when one mole of a particular type of bond is broken. – Bond Enthalpy is the average enthalpy change when a certain type of bond is broken. – For example, in the CH4 molecule, the energy required to dissociate all the four C-H bonds is different.

Which of the following has maximum bond energy?

Cl-Cl bond is strongest and hence, Cl2 has highest bond energy.

What does it mean if a bond has high dissociation energy?

Thus, a very stable bond has a large bond dissociation energy—more energy must be added to cleave the bond. A high bond dissociation energy means that the bond (and molecule) is of low energy and stable. Bond energies depend on the number of bonds between atoms.

What is the bond energy between carbon and hydrogen atoms?

A bond between two carbon atoms, for example (C-C) is only 80 kcal. Or between hydrogen and carbon (two atoms with very similar electronegativities) the bond energy is about 98 kcal.

How does bond energy affect the stability of a molecule?

The larger the bond energy, the higher the amount of external energy it will take to pull the atoms apart, and thus the stronger the force holding the atoms together. Molecules, like water, where all the bond energies are high, are very stable molecules and very hard to break apart.

What is the bond dissociation energy of Pt IV CH3?

A bond dissociation energy of 213 kJ mol −1 has been determined from heats of combustion studies for the Pt IV CH 3 bond. 806 This is very similar to the 223 kJ mol −1 determined in the same study for the Pt IV I bond. 806 This is similar to the situation found for platinum (II) (see Section 39.5.1.4 ).