Chemical Thermodynamics Question 186
Question: Heat of combustion $ \Delta H $ of $ CH_4,,C_2H_6,,C_2H_4 $ and $ C_2H_2 $ gases are - 212.8, - 373.0, - 337.0 and - 310.5 kcal respectively at the same temperature. The best fuel among these gases is
Options:
A) $ CH_4 $
B) $ C_2H_6 $
C) $ C_2H_4 $
D) $ C_2H_2 $
Show Answer
Answer:
Correct Answer: A
Solution:
$ CH_4 $ is the best fuel because its calorific value $ =\frac{-212.8}{16}=-13.3,kcal,/,g $ is higher among the other gases.
