Question

What is the enthalpy for reaction 1 reversed? reaction 1 reversed: co2→co + 12o2 express your answer numerically in kilojoules per mole?

Answer 1

+283.0 kJ·mol⁻¹

Step-by-step explanation:

If reaction 1 reversed is

CO₂ ⟶ CO + ½O₂,

then reaction 1 is

CO + ½O₂ ⟶ CO₂

Reaction 1 is the combustion of carbon monoxide, for which

ΔH = -283.0 kJ·mol⁻¹.

∴ The enthalpy change for reaction 1 reversed is +283.0 kJ·mol⁻¹.