Q30
In the reaction, C + O2 → CO2; ΔH = -94 kcal. What is the heat content (enthalpy) of O2?
A.
-94 kcal
B.
> -94 kcal
C.
< -94 kcal
D.
Zero
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
The enthalpy of formation of an element in its pure state is zero .since it doesn’t require any energy to obtain this state () it is naturally occurring state of the element.