JEE Mains · Chemistry · STD 11 - 5. Thermodynamics and thermochemistry
Identify the correct order of standard enthalpy of formation of sodium halides.
- A \(NaI < NaBr < NaCl < NaF\)
- B \(NaF < NaCl < NaBr < NaI\)
- C \(NaCl < NaF < NaBr < NaI\)
- D \(NaI < NaBr < NaF < NaCl\)
Answer & Solution
Correct Answer
(A) \(NaI < NaBr < NaCl < NaF\)
Step-by-step Solution
Detailed explanation
For a given metal \(\Delta_{ f } H ^0\) always becomes less negative from fluoride to iodide.
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