You have the following equations:
2S (s) + 30 2 (g) - 250 3 (g), A H = -792 kJ
25 (s) + 20 2 (g) → 250 2 (g), A H = -
250 2 (g) + O 2 (g) — 250 3 (g), A H =
U
LL
>
$
What is the missing AH?
>
0 +198 kJ
0-198 kJ
"
i
O
0-594 kJ
1
!
+792 kJ