MyQuestionIcon

3

You visited us 3 times! Enjoying our articles? Unlock Full Access!

Heat Capacity

Calculate the...

Question

Calculate the $Δ H$ of the reaction given (figure).
Bond energy for $C - H$ bond and $C - C l$ bond are $415 k J$ and $326 k J$ respectively.

Open in App

Solution

$Δ H =$ Sum of bond energies of reactants $-$ Sum of bond energies of products
$= [2 \times (C - H) + 2 \times (C - C l)] - 0$ (all the products are free atoms)
$= 2 \times 415 + 2 \times 326$
$= 830 + 652 = 1482 k J$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Calculate the

△

H of the reaction

H - H | C | C l - C l (g) ⟶ C (s) + 2 H (g) + 2 C l (g)

Bond energy for C-H bond & C-Cl bond are 415KJ and 326KJ respectively.

Q. Use the bond energy data and calculate the enthalpy change for the above given reaction.
The bond energies of

C - H

C - C l

413

328 k J {m o l}^{- 1}

Q. Calculate the bond energy of

C l - C l

bond from the following data:

C H_{4 (g)} + C l_{(g)} \to C H_{3} C l_{(g)} + H C l_{(g)}; Δ H = - 100.3 k J

. Also the bond enthalpies of

C - H, C - C l, H - C l

413, 326

431

k J m o l^{- 1}

Δ H

of the reaction ?
The average bond energies of

C - C l

C - H

416 k J

325 k J {m o l}^{- 1}

Calculate the enthalpy ,

Δ H

, for the given reaction using the the given bond energies ?

C_{2} H_{4} + C l_{2} \to C l H_{2} C - C H_{2} C l

Bond energies	kJ/ mol
$C - C$	$347$
$C = C$	$612$
$C - C l$	$341$
$C - H$	$414$
$C l - C l$	$243$

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Heat Capacity

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon