Chemical Thermodynamics Question 244
Question: Standard molar enthalpy of formation of $ CO_2 $ is equal to [IIT JEE 1997; BHU 2001]
Options:
A) Zero
B) The standard molar enthalpy of combustion of gaseous carbon
C) The sum of standard molar enthalpies of formation of $ CO $ and $ O_2 $
D) The standard molar enthalpy of combustion of carbon (graphite)
Show Answer
Answer:
Correct Answer: D
Solution:
Standard molar heat enthalpy $ (H^{o}) $ of a compound is equal to its standard heat of formation from most stable states of initial components.
