Home
Class 11
CHEMISTRY
What is the heat of formation of C(6)H(6...

What is the heat of formation of `C_(6)H_(6)`, given that the heats of combustion of Benzene, carbon and Hydrogen are 782, 94 and 68K.Cal respectively

A

`+14` K.Cal

B

`-14` K.Cal

C

`+28` K.Cal

D

`-28` K.Cal

Text Solution

Verified by Experts

The correct Answer is:
A

`6C+3H_(2)rarrC_(6)H_(6)," "DeltaH=H_(P)-H_(R)`
Promotional Banner

Similar Questions

Explore conceptually related problems

The heat of combustion of liquid ethanol is -327.0 kcal calculate the heat of formation of ethanol. Given that the heats of formation of CO_(2)(g) and H_(2)O(l) are -94.0 kcal and -68.4 kcal respectively.

Calculate the heat of hydrogenation , C_(2)H_(4)(g)+H_(2)(g)toC_(2)H_(6)(g) Given that, the heats of combustion of ethylene, hydrogen and ethane are -337.0, -68.4 and -373.0 kcal respectively.

Calculate the bond energy of C - H bond, given that the heat of formation of CH_4 , heat of sublimation of carbon and heat of dissociation of H_2 are -74.8 + 719.6 and 435 kJ mol^(-1) respectively.

On complete combustion of 2 gm methane -26575 cals heat is generated. The heat of formation of methane will be (given heat of formation of CO_(2) and H_(2)O are - 97000 and - 68000 cais respectivvely) :

The heat of combustion of acetylene is 312 Kcal . If heat of formation of CO_(2) & H_(2)O are -94 & -68 Kcal respectively . Given that heat of atomisation of C& H are 150 & 50 Kcal respectively and C-H bond energy is 93 Kcal . Calculate (DeltaH_(C=C))/(6)