Chemical Thermodynamics Question 253
Question: $ S+\frac{3}{2}O_2\to SO_3+2x,kcal $
$ SO_2+\frac{1}{2}O_2\to SO_3+y,kcal $ Find out the heat of formation of $ SO_2 $ [AIIMS 1997; CBSE PMT 1999; KCET 1999]
Options:
A) $ 2x-y $
B) $ 2x+y $
C) $ x+y $
D) $ 2x/y $
Show Answer
Answer:
Correct Answer: A
Solution:
Subtract equation (ii) from (i).