Chemical Thermodynamics Question 213
Question: Which of the following statements is correct about heat of combustion [MADT Bihar 1982]
Options:
A) It may be exothermic in some cases and endothermic in other cases
B) It is applicable to gaseous substances only
C) It is always an exothermic reaction
D) Its value does not change with temperature
Show Answer
Answer:
Correct Answer: C
Solution:
$ \Delta {H_{combusion}} $ = -ve, so exothermic process.
