Consider the data for the following reaction
Given : Bond Energies $C - C$ = 348 kJ/mole
$C - H$ = 415 kJ/mole C = C = 600 kJ/mole
H-H=436 kJ/mole and $Δ_{s u b} H (C) = 717 k J / m o l e$
Resonance Energies of $C_{6} H_{6} (l) = - 152 k J / m o l e$
$Δ_{v a p} H$ of benzene = 30.8 and of cyclohexane is 33 kJ/mole.
If the energy of aromatization of cyclohexane (kJ/mole) is X then the value of X/92 is ______

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

answer is 3.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

$Δ H = \sum {(B . E)}_{r e a c \tan t s} - \sum {(B . E)}_{p r o d u c t s}$

$(Δ H_{v a p} C_{6} H_{12} (l) + 6 B . E_{C - C} + 12 B . E_{C - H}) - (\begin{array}{l} Δ H_{v a p} C_{6} H_{6} (l) + R . E . C_{6} H_{6} (l) + 6 B . E_{C - H} \\ + 3 B . E_{C = C} + 3 B . E_{C - C} + 3 B . E_{H - H} \end{array})$ $= (33 + 6 \times 348 + 12 \times 415) - (30.8 + 152 + 6 \times 415 + 3 \times 600 + 3 \times 348 + 3 \times 436)$