Define Bond length& Bond dissociation enthalpy

Define Bond length& Bond dissociation enthalpy
by

1 Answer

Answer :

Ans. The equilibrium distance between the centre s of the nuclei of two bonded atoms is called bond length.
The energy required to break a bond is called bond dissociation enthalpy.
by

Related questions

Bond dissociation enthalpy of `H_(2)` , `Cl_(2)` and `HCl` are `434, 242` and `431KJmol^(-1)` respectively. Enthalpy of formation of `HCl` is

Description : Bond dissociation enthalpy of `H_(2)` , `Cl_(2)` and `HCl` are `434, 242` and `431KJmol^(-1)` respectively. Enthalpy of formation of `HCl` is

Last Answer : Bond dissociation enthalpy of `H_(2)` , `Cl_(2)` and `HCl` are `434, 242` and `431KJmol^(-1)` respectively. ... kJ mol^(-1)` D. `-245 kJ mol^(-1)`

Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has – (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Description : Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has – (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Last Answer : (3) stable half filled 2p sub level Explanation: Ionization energy is a measure of the ease in which atoms lose electrons and become positive ions.

Which describes the bond strength or bond dissociation energy? (a) energy required to break a bond (b) energy released when a bond breaks(c) energy released when a bond is formed(d) (a) and (c)

Description : Which describes the bond strength or bond dissociation energy? (a) energy required to break a bond (b) energy released when a bond breaks (c) energy released when a bond is formed (d) (a) and (c)

Last Answer : (a) and (c)

Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Description : Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has (1) high bond dissociation energy (2) smaller atomic radius (3) stable half filled 2p sub level (4) high nuclear charge

Last Answer : stable half filled 2p sub level

Assertion :- Bond Dissociation energy is `F_(2) gt Cl_(2)` Reason:- `Cl_(2)` have more electronic repulsion than `F_(2)`.

Description : Assertion :- Bond Dissociation energy is `F_(2) gt Cl_(2)` Reason:- `Cl_(2)` have more electronic repulsion than `F_(2)`.

Last Answer : Assertion :- Bond Dissociation energy is `F_(2) gt Cl_(2)` Reason:- `Cl_(2)` have more ... is False. D. If both Assertion & Reason are false

The decreasing order of bond dissociation energy of C-H bond in given compound is :- (A) `CH_(3)-H` (B) `CH_(3)-CH_(2)-H` `CH_(2)=CH-CH_(2)-H` (D)

Description : The decreasing order of bond dissociation energy of C-H bond in given compound is :- (A) `CH_(3)-H` (B) `CH_(3)-CH_(2)-H` `CH_(2)=CH-CH_(2)-H` (D)

Last Answer : The decreasing order of bond dissociation energy of C-H bond in given compound is :- (A) `CH_(3)-H` (B) `CH_(3)- ... gt B gt A` D. `C gt B gt A gt D`

With respect to halogens, four statements are given below: (P) The bond dissociation energies for halogens are in the order: `I_(2) lt F_(2) lt Br_(2)

Description : With respect to halogens, four statements are given below: (P) The bond dissociation energies for halogens are in the order: `I_(2) lt F_(2) lt Br_(2)

Last Answer : With respect to halogens, four statements are given below: (P) The bond dissociation energies for halogens are in ... ,III,IV C. II,III,IV D. I,III

The X - X bond dissociation energy is minimum in:

Description : The X - X bond dissociation energy is minimum in:

Last Answer : The X - X bond dissociation energy is minimum in: A. (A) `F_2` B. (B) `Cl_2` C. (C) `Br_2` D. (D)`l_2`

Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Description : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Last Answer : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy? ... B. n-pentane C. Benzene D. Toluene

Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Description : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy?

Last Answer : Which of the following compounds prossesses the `C-H` bonds with the lowest bond dissociation energy? ... n-Pentane C. Toluene D. 2,2-Dimethylpropane

The correct order in which oxygen - oxygen bond dissociation energy increases is:

Description : The correct order in which oxygen - oxygen bond dissociation energy increases is:

Last Answer : The correct order in which oxygen - oxygen bond dissociation energy increases is: A. `H_(2)O_(2)ltO_(2)ltO_(3)` ... 2)` D. `O_(2)ltH_(2)O_(2)ltO_(3)`

(A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : The heats of dissociation of M - H bond of hy

Description : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : The heats of dissociation of M - H bond of hy

Last Answer : (A) : Thermal stability of the hydrides of VIA group elements decreases from `H_(2)O` to `H_(2)Po` (R) : ... is false D. (A) is false but (R) is true

What is bond enthalpy ? What is its unit ? How we calculate enthalpy in case of complex compound ?

Description : What is bond enthalpy ? What is its unit ? How we calculate enthalpy in case of complex compound ?

Last Answer : Ans. Amount of energy Required ot break one mole of bonds of particular type b/w two atoms in gaseous state. Its unit is KJ/mole It is obtained by dividing total bond dissociation enthalpy by no. of bonds broken

Define electrolytic dissociation.State Arrhenius theory of electrolytic dissociation.

Description : Define electrolytic dissociation.State Arrhenius theory of electrolytic dissociation.  

Last Answer : Electrolytic dissociation: - The process of splitting up of an electrovalent compound (Electrolyte) into its ions when dissolved in proper solvent like water is called as electrolytic dissociation. Arrhenius ... that can be present on cation or anion depends upon valency of parent atom.  

How is the stability of a co-ordination compound in solution decided ? How is the dissociation constant of a complex defined? -Chemistry

Description : How is the stability of a co-ordination compound in solution decided ? How is the dissociation constant of a complex defined? -Chemistry

Last Answer : Stability of a complex in solution means the measure of resistance to the replacement of a ligand by some other ligand. This stablility can be expressed in terms of equilibrium constant. Let the ... is its tendency to donate electron pair and therefore, more is the stability of the complex.

What is a dissociation reaction ?

Description : What is a dissociation reaction ?

Last Answer : The process of breaking down a compound into several compounds or elements is called dissociation reaction.

The degree of dissociation of an electrolyte depends on - (1) dilution (2) impurities (3) atmospheric pressure (4) method of dissolution

Description : The degree of dissociation of an electrolyte depends on - (1) dilution (2) impurities (3) atmospheric pressure (4) method of dissolution

Last Answer : (1) dilution Explanation: The extent to which an electrolyte dissociates into ions is known as degree of dissociation or ionization and depends upon the following factors: (1) Nature of the electrolyte, (2) Temperature, (3) Dilution, (4) nature of the solvent, and (e) presence of other ions.

What is the difference between dissociation and ionization?

Description : What is the difference between dissociation and ionization?

Last Answer : Ans: The term ionization is used for the compounds which are covalent and when dissolve in the solution undergo dissociation where as for the ionic compounds which are in ionic form in the compound when dissolve into the solution undergo dissociation.

What happens to the dissociation of PCl5 in a closed vessel if He gas is introduced into it at the same temperature?

Description : What happens to the dissociation of PCl5 in a closed vessel if He gas is introduced into it at the same temperature?

Last Answer : Ans. No effect.

The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Description : The difference in the osmotic pressures of one molar solutions of different compounds in a given solvent at a given temperature results from? w) Different values for R x) Different values for Avogadro's number y) Ionization or dissociation z) None of the above

Last Answer : ANSWER: Y -- IONIZATION OR DISSOCIATION 

My theory of electrolytic dissociation earned me t 1903 Nobel Prize in chemistry. My name is: w) Niels Bohr x) Svante Arrhenius y) Michael Faraday z) John Cavendish

Description : My theory of electrolytic dissociation earned me t 1903 Nobel Prize in chemistry. My name is: w) Niels Bohr x) Svante Arrhenius y) Michael Faraday z) John Cavendish

Last Answer : ANSWER: X -- SVANTE ARRHENIUS

The degree of dissociation of an electrolyte depends on (1) dilution (2) impurities (3) atmospheric pressure (4) method of dissolution

Description : The degree of dissociation of an electrolyte depends on (1) dilution (2) impurities (3) atmospheric pressure (4) method of dissolution

Last Answer : dilution

Cement is made hard with (1) dehydration (2) hydration and dissociation of water (3) Dissociation of water (4) Polymerisation

Description : Cement is made hard with (1) dehydration (2) hydration and dissociation of water (3) Dissociation of water (4) Polymerisation

Last Answer : hydration and dissociation of water

Baryllium Sulphate is less soluble in water due to (1) High inflammable energy (2) Low Energy of dissociation (3) Low inflammable energy (4) Lonic band

Description : Baryllium Sulphate is less soluble in water due to (1) High inflammable energy (2) Low Energy of dissociation (3) Low inflammable energy (4) Lonic band

Last Answer : High inflammable energy

Define ionization enthalpy. Name the factors on which ionisation enthalpy depends? How does it vary down the group and across a period?

Description : Define ionization enthalpy. Name the factors on which ionisation enthalpy depends? How does it vary down the group and across a period?

Last Answer : Define ionization enthalpy. Name the factors on which ionisation enthalpy depends? How does it vary down the group and across a period?

Define the terms free energy and free enthalpy. What is their significance and importance ?

Description : Define the terms free energy and free enthalpy. What is their significance and importance ?

Last Answer : Free energy (or Helmholtz function) is defined as/= u -Ts. It is equal to the work during a constant-volume isothermal reversible nonflow process. Free enthalpy (or Gibbs function) is ... for reversible constant-pressure isothermal nonflow processes, change in free energy is equal to net work.

Define the terms free energy and free enthalpy. What is their significance and importance ?

Description : Define the terms free energy and free enthalpy. What is their significance and importance ?

Last Answer : Free energy (or Helmholtz function) is defined as/= u -Ts. It is equal to the work during a constant-volume isothermal reversible nonflow process. Free enthalpy (or Gibbs function) is ... or for reversible constant-pressure isothermal nonflow processes, change in free energy is equal to net work.

Define enthalpy of steam with its unit.

Description : Define enthalpy of steam with its unit.

Last Answer : Enthalpy of dry saturated steam. It is the quantity of heat required to raise the temperature of 1 kg of water from the freezing point to the boiling point and then convert it into dry saturated steam at that temperature and pressure. Unit: kJ/kg

Define bond order and give the relationship between bond order and bond length

Description : Define bond order and give the relationship between bond order and bond length

Last Answer : Ans Bond order (b.o.) is defined as one half the difference between the number of electrons present in the bonding and the antibonding orbitals i.e., Bond order (b.o.) = ½ (Nb–Na) Bond order is inversely proportional to bond length

Define Ionic Bond & Covalent Bond how it is formed explain with example.

Description : Define Ionic Bond & Covalent Bond how it is formed explain with example.

Last Answer : Ans : Ionic Bond OR Electrovalent Bond : The attraction that binds oppositely charged ions together is termed as electrovalent bond or ionic bond. It is formed between the atoms with electronegativity ... most shell by means of sharing of unpaired electrons & thus a covalent bond is formed.

Define Chemical Bond & how it is formed.

Description : Define Chemical Bond & how it is formed.

Last Answer : Ans : Chemical Bond : Chemical bond is defined as the force of attraction which holds the atoms together in a compound (molecule or crystal). Formation Of Chemical Bond : Atoms form chemical ... the valence shell electrons are either transferred from one atom to another atom or shared by them.

What survival benefit does dissociation serve?

Description : What survival benefit does dissociation serve?

Last Answer : answer:It’s a tactic for getting through the immediate crisis, not getting through the next 10 years. Dissociating isn’t like your brain just shuts off, it’s like the emotion parts and the reality parts shut off, and you go into fight-or-flight mode.

What is atomic dissociation ?

Last Answer : absolute + molecule = atom

Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason `:-` In the alveoli `P_(CO_(2))` is low and `P_(

Description : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason `:-` In the alveoli `P_(CO_(2))` is low and `P_(

Last Answer : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason ` ... . D. If both Assertion & Reason are false.

Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more affinity with Haemoglobin as compares to oxyg

Description : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more affinity with Haemoglobin as compares to oxyg

Last Answer : Assertion `:-` Low concentration of oxygen allow dissociation of oxyhaemoglobin. Reason `:-` CO has more ... D. If both Assertion & Reason are false.

Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio of `CO_(2)` allow dissociation of oxyhaemoglobin.

Description : Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio of `CO_(2)` allow dissociation of oxyhaemoglobin.

Last Answer : Assertion `:-` Bohr effect occur at the level of alveoli of lungs. Reason `:-` High concentratio ... False. D. If both Assertion & Reason are false.

Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` concentration conditions are favourable for dissociation of oxygen fr

Description : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` concentration conditions are favourable for dissociation of oxygen fr

Last Answer : Assertion `:-` In the tissue high `P_(O_(2))`, low `P_(CO_(2))`, higher `H^(o+)` ... Reason is False. D. If both Assertion & Reason are false.

Given below graphs an oxygen dissociation curve `:-` Where in the body will haemoglobin be saturation at the percentage shown at points X,Y and Z.

Description : Given below graphs an oxygen dissociation curve `:-` Where in the body will haemoglobin be saturation at the percentage shown at points X,Y and Z.

Last Answer : Given below graphs an oxygen dissociation curve `:-` Where in the body will haemoglobin be ... ventricle , Y-Right ventricle, Z-Systemic artery

The oxygen - haemoglobin dissociation curve will show a right shift in case of

Description : The oxygen - haemoglobin dissociation curve will show a right shift in case of

Last Answer : The oxygen - haemoglobin dissociation curve will show a right shift in case of A. High `pCO_(2)` B. High ... `pCO_(2)` D. Less `H^(+)` concentration

Oxygen dissociation curve shifts to right when `:-`

Description : Oxygen dissociation curve shifts to right when `:-`

Last Answer : Oxygen dissociation curve shifts to right when `:-` A. `P_(o_(2))` decreases B. `P_(Co_(2))` decreases C. pH increases D. Temperature decreases

The oxygen Haemoglobin dissociation curve will show a right shift in case of `:-`

Description : The oxygen Haemoglobin dissociation curve will show a right shift in case of `:-`

Last Answer : The oxygen Haemoglobin dissociation curve will show a right shift in case of `:-` A. Less `H^(+)` concentration B. ... `CO_(2)` D. High 2,3, D.P.G.

Dissociation curve shifts to the right when

Description : Dissociation curve shifts to the right when

Last Answer : Dissociation curve shifts to the right when A. `CO_(2)` concentration decreases B. `CO_(2 ... increases D. `H^(+)` concentration decreases

Decrease in pH causes `O_(2)` dissociation curve of haemoglobin to shift to

Description : Decrease in pH causes `O_(2)` dissociation curve of haemoglobin to shift to

Last Answer : Decrease in pH causes `O_(2)` dissociation curve of haemoglobin to shift to A. shift of ... right C. remain unchanged D. will oscillate erratically

Oxygen dissociation curve of haemoglobin is

Description : Oxygen dissociation curve of haemoglobin is

Last Answer : Oxygen dissociation curve of haemoglobin is A. Hyperbolic B. Sigmoid C. Straight D. Constant

Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused by

Description : Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused by

Last Answer : Body tissues obtain oxygen from haemoglobin because of its dissociation in tissues caused by A. Low ... concentration D. High `CO_(2)` concentration

Oxygen haemoglobin dissociation curve will shift to right on decrease of

Description : Oxygen haemoglobin dissociation curve will shift to right on decrease of

Last Answer : Oxygen haemoglobin dissociation curve will shift to right on decrease of A. Acidity B. Carbon dioxide concentration C. Temperature D. pH

In the dissociation of `I_(2)(g)` at 1000 K in a container of 1 litre :- `I_(2)(g)rArr2I^(-)(g),K_(c)=10^(10)` Select the correct relation :-

Description : In the dissociation of `I_(2)(g)` at 1000 K in a container of 1 litre :- `I_(2)(g)rArr2I^(-)(g),K_(c)=10^(10)` Select the correct relation :-

Last Answer : In the dissociation of `I_(2)(g)` at 1000 K in a container of 1 litre :- `I_(2)(g)rArr2I^(-)(g),K_(c)=10^(10)` ... I^(-)]` D. `[I_(2)]=(1)/(2)[I^(-)]`

`ArArr2B,K_(p),CrArrD+E,K_(p)` . If degrees of dissociation of A and C are same and `K_(p)=2K_(p)`, then the ratio of total presure `p//p=`?

Description : `ArArr2B,K_(p),CrArrD+E,K_(p)` . If degrees of dissociation of A and C are same and `K_(p)=2K_(p)`, then the ratio of total presure `p//p=`?

Last Answer : `ArArr2B,K_(p),CrArrD+E,K_(p)` . If degrees of dissociation of A and C are same and `K_(p)=2K_(p)`, then the ratio ... B. `(1)/(3)` C. `(1)/(4)` D. 2

At the equilibrium of the reaction , `N_(2)O_(4)(g)rArr2NO_(2)(g)`, the observed molar mass of `N_(2)O_(4)` is 77.70 g . The percentage dissociation o

Description : At the equilibrium of the reaction , `N_(2)O_(4)(g)rArr2NO_(2)(g)`, the observed molar mass of `N_(2)O_(4)` is 77.70 g . The percentage dissociation o

Last Answer : At the equilibrium of the reaction , `N_(2)O_(4)(g)rArr2NO_(2)(g)`, the observed molar mass of `N_(2)O_(4)` is ... A. 28 .4 B. 46 .7 C. 22.4 D. 18 .4

For the dissociation reaction `N_(2)O_($) (g)hArr 2NO_(2)(g)`, the degree of dissociation `(alpha)`interms of `K_(p)` and total equilibrium pressure P

Description : For the dissociation reaction `N_(2)O_($) (g)hArr 2NO_(2)(g)`, the degree of dissociation `(alpha)`interms of `K_(p)` and total equilibrium pressure P

Last Answer : For the dissociation reaction `N_(2)O_($) (g)hArr 2NO_(2)(g)`, the degree of dissociation `(alpha)`interms ... =sqrt((K_(P))/(4P))` D. None of these