Question

find the delta H in the following reaction C(s)+O2​(g)→CO2​(g) ​

Answer 1

Answer:

The thermochemical reactions are as given below.

C(s)+O

2

(g)→CO

2

(g)ΔH=+94.0Kcal. ......(1)

CO(g)+

2

1

O

2

(g)→CO

2

(g),ΔH=−67.7Kcal ......(2)

The reaction (2) is reversed and added to the reaction (1) to obtain the reaction C(s)+

2

1

O

2

(g)→CO(g).

The heat produced in this reaction is 94.0−(−67.7)=161.7 Kcal/mole