Question

5. From the following thermochemical reactions,
C(graphite) + 30, — CO; -AH = -110.5 kJ
CO + 30, —CO, AH = -283.2 kJ
the heat of reaction of C(graphite) + O2 + Co, is
(1) +393.7 kJ -
(2)) -172.7 kJ -
(3) -393.7 kJ
(4) +172.7 kJ -​

Answer 1

Answer:

option 3

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