wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question


If enthalpy of hydrogenation of C6H6(l) into C6H12(l) is 205kJ and resonance energy of C6H6(l) is 152kJ/mol then enthalpy of hydrogenation of the given figure is
[Assume : ΔHvap of C6H6(l),C6H8(l),C6H12(l) are all equal]

142982_fcf81ab8bdfb4214b96c8103cbb985c9.PNG

A
+535.5 kJ/mol
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
238 kJ/mol
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
357 kJ/mol
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
119 kJ/mol
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 119 kJ/mol
Total enthalpy of hydrogenation if resonance doesn't happen =205+(152)=357 kJ/mol
So for given molecule (single double bond) energy of hydrogenation is 357/3=119 kJ/mol

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Thermochemistry
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon