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When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :
- a)almost the same as that of the first
- b)negative, but less negative than the first
- c)a positive value
- d)a more negative value than the first
Correct answer is option 'C'. Can you explain this answer?
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When the first electron gain enthalpy (ΔegH) of oxygen is &ndash...
Second electron gain enthalpy is always positive for every element.
O–(g)+ e– →O¯2(g) ; ΔH = positive
O–(g)+ e– →O¯2(g) ; ΔH = positive
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When the first electron gain enthalpy (ΔegH) of oxygen is &ndash...
Also known as the first electron affinity) of an atom is measured, it refers to the energy change that occurs when one electron is added to a neutral atom in the gas phase to form a negatively charged ion (anion). The first electron gain enthalpy is generally exothermic, meaning that energy is released when the electron is added.
The equation for the first electron gain enthalpy can be represented as follows:
X(g) + e- → X-(g) + energy
where X represents the atom, (g) represents the gaseous state, e- represents an electron, and energy represents the energy released.
The first electron gain enthalpy provides information on the tendency of an atom to gain an electron and form an anion. It is influenced by factors such as the atomic size, electron configuration, and electronegativity of the atom. Generally, atoms with smaller atomic size, higher effective nuclear charge, and higher electronegativity have higher first electron gain enthalpies, indicating a greater tendency to gain an electron.
It is important to note that the first electron gain enthalpy is different from the second and subsequent electron gain enthalpies, as the addition of each additional electron becomes progressively more difficult due to the increasing negative charge and repulsion among the electrons.
The equation for the first electron gain enthalpy can be represented as follows:
X(g) + e- → X-(g) + energy
where X represents the atom, (g) represents the gaseous state, e- represents an electron, and energy represents the energy released.
The first electron gain enthalpy provides information on the tendency of an atom to gain an electron and form an anion. It is influenced by factors such as the atomic size, electron configuration, and electronegativity of the atom. Generally, atoms with smaller atomic size, higher effective nuclear charge, and higher electronegativity have higher first electron gain enthalpies, indicating a greater tendency to gain an electron.
It is important to note that the first electron gain enthalpy is different from the second and subsequent electron gain enthalpies, as the addition of each additional electron becomes progressively more difficult due to the increasing negative charge and repulsion among the electrons.
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When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :a)almost the same as that of the firstb)negative, but less negative than the firstc)a positive valued)a more negative value than the firstCorrect answer is option 'C'. Can you explain this answer?
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When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :a)almost the same as that of the firstb)negative, but less negative than the firstc)a positive valued)a more negative value than the firstCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :a)almost the same as that of the firstb)negative, but less negative than the firstc)a positive valued)a more negative value than the firstCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :a)almost the same as that of the firstb)negative, but less negative than the firstc)a positive valued)a more negative value than the firstCorrect answer is option 'C'. Can you explain this answer?.
When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :a)almost the same as that of the firstb)negative, but less negative than the firstc)a positive valued)a more negative value than the firstCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :a)almost the same as that of the firstb)negative, but less negative than the firstc)a positive valued)a more negative value than the firstCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the first electron gain enthalpy (ΔegH) of oxygen is –141 kJ/mol, its second electron gain enthalpy is :a)almost the same as that of the firstb)negative, but less negative than the firstc)a positive valued)a more negative value than the firstCorrect answer is option 'C'. Can you explain this answer?.
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