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Silica

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What will be the enthalpy of atomisation of hydrogen molecule it its bond dissociation entalpy is x kj/mol

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Q. If enthalpy of atomisation for

B r_{2} (l)

k J / m o l

and bond enthalpy for

B r_{2}

k J / m o l

, the relation between them:

Q. Enthalpy of formation of

C_{2} H_{6} = - 83 k J / m o l

Enthalpy of sublimation of graphite =

719 k J / m o l

Enthalpy of bond dissociation of

H_{2} = 435 k J / m o l

C - H bond enthalpy =

414 k J / m o l

Calculate the bond enthalpy of C - C

Q. Bond dissociation enthalpies of

H_{2} (g)

N_{2} (g)

{m o l}^{- 1}

{m o l}^{- 1}

and enthalpy of formation of

{N H}_{3} (g)

{m o l}^{- 1}

. What is enthalpy of atomization of

{N H}_{3} (g) ?

What is average bond enthalpy of

N - H

Q. At 298.2 K the relationship between enthalpy of bond dissociation (in kJ

{mol}^{- 1}

(E_{H})

and its isotope, deuterium

(E_{D})

, is best described by

Q. Bond dissociation enthalpies of

H_{2_{(} g)}

N_{2_{(} g)}

K J

m o l^{- 1}

K J

m o l^{- 1}

, respectively and enthalpy of formation of

N H_{3_{(} g)}

- 46 K J

m o l^{- 1}

What is the enthalpy of atomization of

N H_{3_{(} g)}

and the average bond enthalpy of

N - H

bond respectively (in

K J

m o l^{- 1}

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