What is the standard enthalpy change (ΔH°) for a chemical reaction carried out under standard conditions?
A. ΔH° = 0
B. ΔH° = 1 kJ/mol
C. ΔH° = -1 kJ/mol
D. Depends on the reaction
The standard enthalpy change (ΔH°) for a reaction carried out under standard conditions is defined as 0 kJ/mol.