Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

Enthalpy of neutralization for a strong acid and strong base is approximately:
Options
A 25.7 kJ/mol
B -57.1 kJ/mol
Correct Answer
C 100 kJ/mol
D -41.2 kJ/mol
Correct Answer

Option B is the correct answer.

Detailed Explanation

The neutralization of a strong acid by a strong base is essentially the reaction H⁺(aq) + OH⁻(aq) → H₂O(l). The standard enthalpy change for this reaction is approximately -57.1 kJ per mole of water formed.

Hint

This is a well-known approximate value for the heat of neutralization of strong acids and bases.

Question Info