Question

The following are the heats of reactions -
(i) AH; of H,O,0) = -68.3 kCal mol-1
(ii) AHomb. of C,H, = -337.2 kCal mol-1
(iii) AH.omb of C,H, = -363.7 kCal mol-1
Then heat change for the reaction
CH, +H, C,H, is -
(1) -716.1 kcal
(2) + 337.2 kcal
(3) -41.8 kCal
(4) -579.5 kcal
​

Answer 1

Answer:

+337.2 kcal heat reaction changes into this

Answer 2

Answer:

${\overbrace{\underbrace{\blue{+337.2kcal}}}}$