The formation of carbon dioxide occurs in two steps: C (s) + 1/2 O2 (g) →...

Question

Question

The formation of carbon dioxide occurs in two steps:

C (s) + 1/2 O₂ (g) → CO (g). ΔH₁ = -110.5 kJ

CO (g) + 1/2 O₂ (g) → CO₂ (g). ΔH₂ = -283.0 kJ.

Calculate the enthalpy change for the overall reaction: C (s) + O₂ (g) → CO₂ (g). ΔH = ?

Select one:

a. -393.5 kJ

b. -172.5 kJ

c. +172.5 kJ

d. +393.5 kJ

science chemistry

Answer 1

Answer #1

Answer 2

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