Which of the following has a $\Delta$H^$\circ$_f= 0 kJ/mol A) CO₂(g) B) O₃(g) C) Cl^-(aq) D) NH₃(aq) E) I₂(s)

Question

Quizplus · Accepted Answer

The correct answer is E) $I_2(s)$. The question seems to be asking about a substance with a standard enthalpy change of formation ($\Delta H_f^\circ$) of 0 kJ/mol. By definition, the standard enthalpy change of formation of a pure element in its standard state (like $I_2$ solid) is 0 kJ/mol.

Which of the Following Has A Δ\DeltaΔ H ∘\circ∘ f= 0 KJ/mol A) CO2(g) B) O3(g) C) Cl-(aq) D)

Which of the Following Has A $\Delta$ H^$\circ$_f= 0 KJ/mol
A) CO₂(g)
B) O₃(g)
C) Cl^-(aq)
D)