Chemical Thermodynamics Question 190
Question: The standard molar heat of formation of ethane, $ CO_2 $ and water (l) are respectively - 21.1, - 94.1 and - 68.3 kcal. The standard molar heat of combustion of ethane will be [IIT JEE 1986; DPMT 2005]
Options:
A) - 372 kcal
B) 162 kcal
C) -240 kcal
D) 183.5 kcal
Show Answer
Answer:
Correct Answer: A
Solution:
$ C_2H_6+,\frac{7}{2}O_2\to 2CO_2+3H_2O $ substitute the values.
