Question

Which of the following is true for the reaction below? CO2(g) + 393.5 kJ C(s) + O2(g)

It is endothermic and the ∆H = +393.5 kJ.
It is endothermic and the ∆H = -393.5 kJ.
It is exothermic and the ∆H = +393.5 kJ.
It is exothermic and the ∆H= -393.5 kJ.
This reaction will not occur.

Answer 1

It is endothermic and the ∆H = +393.5 kJ.

Answer 2

Since energy is given to the reactant side, the reaction is endothermic reaction and it is given by ΔH = +393.5 kJ

Therefore option A is correct.