Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The standard enthalpy of formation 
at 298 K for methane, 
, is 
.The additional information required to determine the average energy for 
bond formation would be
A
the dissociation energy of 
and enthalpy of sublimation of carbon
and enthalpy of sublimation of carbon B
latent heat of vaporisation of methane
C
the first four ionisation energies of carbon and electron gain enthalpy of hydrogen
D
the dissociation energy of hydrogen molecule, 
Text Solution
Verified by ExpertsThe correct answer is:
A
Carbon is found in solid state. The state of substance affects the enthalpy change.
sublimation
and 
dissociation
are required for 
bond.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Thermodynamic is not concerned about …… .
An isolated system can exchange ……… with its surroundings.
In thermodynamics, a process is called reversible when
Which of the following property is correctly matched with the given type?
Which of the following thermodynamic properties is not a macroscopic property?
Among the following, all are state function(s) except