JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
The \(1^{st}\) ionization enthalpy for Mg is \(+737\) kJ/mol. The most probable estimated value of the \(2^{nd}\) ionization enthalpy of Mg is ______.
- A \(-906\) kJ/mol
- B \(-856\) kJ/mol
- C \(+1450\) kJ/mol
- D \(+590\) kJ/mol
Answer & Solution
Correct Answer
(C) \(+1450\) kJ/mol
Step-by-step Solution
Detailed explanation
Ionization enthalpy is the energy required to remove an electron from an isolated gaseous atom or ion. It is always an endothermic process, so its value is always positive. The second ionization enthalpy is the energy required to remove an electron from a unipositive ion. Since…
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