Careers360 Logo
Search Colleges, Exams, Schools & more
ask-icon
share
    NTA Re NEET 2026 Answer Key Release Date: NEET Official Answer Key Expected by June 24 at neet.nta.nic.in
    1. Home
    2. NEET
    3. Study Material
    4. Ionization And Electron Gain Enthalpy MCQ - Practice Questions with Answers

    Ionization And Electron Gain Enthalpy MCQ - Practice Questions with Answers

    Edited By admin | Updated on Sep 25, 2023 25:23 PM | #NEET

    Quick Facts

    • 3 Questions around this concept.

    Solve by difficulty

    QuestionEASY

    What is the value of electron gain enthalpy Na+ if IE1 of Na = 5.1 eV?

    View Solution

    What is the value of electron gain enthalpy of Na+ if IE1 of Na = 5.1 eV?

    View Solution

    Concepts Covered - 1

    Ionization And Electron Gain Enthalpy

    Ionization Energy and Electron Affinity

    Ionization energy and electron affinity are defined at absolute zero. At any other temperature, heat capacities for the reactants and the products have to be taken into account.

    \begin{array}{l}{\mathrm{M}(\mathrm{g}) \rightarrow \mathrm{M}^{+}(\mathrm{g})+\mathrm{e}^{-} \text {(for ionization) }} \\ {\mathrm{M}(\mathrm{g})+\mathrm{e}^{-} \rightarrow \mathrm{M}^{-}(\mathrm{g}) \text { (for electron gain) }}\end{array}

    at temperature, T is

    \Delta_{r} H^{\ominus}(T)=\Delta_{r} H^{\ominus}(0)+\int_{0}^{T} \Delta_{r} C_{p}^{\ominus} d T

    The value of Cp for each species in the above reaction is 5/2 R (CV = 3/2R)

    \begin{aligned} \text { So, } \Delta_{r} C_{p}^{\ominus} &=+5 / 2 \mathrm{R} \text { (for ionization) } \\ \Delta_{I} C_{p}^{\ominus} &=-5 / 2 \mathrm{R} \text { (for electron gain) } \end{aligned}

    Therefore,

    \begin{array}{l}{\Delta_{r} H^{\ominus}(\text { ionization enthalpy })} {=E_{0}(\text { ionization energy })+5 / 2 \mathrm{RT}} \\ {\Delta_{r} H^{\ominus}(\text { electron gain enthalpy) }} {=-\mathrm{A}(\text { electron affinity) }-5 / 2 \mathrm{RT}}\end{array}

    Study it with Videos

    Ionization And Electron Gain Enthalpy

    Study other Related Concepts

    Ionization And Electron Gain Enthalpy Current Topic

    Thermodynamics
    Thermodynamic Property
    State Functions
    Reversible, Irreversible, Polytropic Process
    Zeroth Law Of Thermodynamics
    Introduction To Heat, Internal Energy And Work
    First Law of Thermodynamics
    Isothermal Expansion of an Ideal Gas
    Adiabatic Process
    Graphical Comparison of Thermodynamic Processes

    "Stay in the loop. Receive exam news, study resources, and expert advice!"

    Books

    Reference Books

    Ionization And Electron Gain Enthalpy

    Chemistry Part I Textbook for Class XI

    Page No. : 179

    Line : 40

    Clear your Basics with NCERT

    E-books & Sample Papers

    Get Answer to all your questions

    Begin a career in Medical and Allied Sciences. Admissions Open for

    S-VYASA Deemed to be University B.Sc. Admissions 2026
    Apply

    Recognized as Category 1 University by UGC | Accredited with A+ Grade by NAAC | Scholarships available

    Amity University Noida | Allied Health Sciences Admissions
    Apply

    Ranked as India’s #1 Not for profit pvt. University by India Today

    KCDSH- Krishnadevaraya Dental College & Sciences Admis 2026
    Apply

    Ranked among the top Dental Colleges for 7 consecutive years by India Today poll

    Max Institute of Allied and Paramedical Education (MIAPE)
    Apply

    Get Started With Your Healthcare Career. 2026 Admissions open.

    Emversity Allied Health Programs
    Apply

    Get Job Ready in Healthcare | Employability-Focused Programs

    Virohan Allied & Healthcare Programs
    Apply

    Allied & Healthcare programs | 20+ Partner Universities & Institutes | 98% placement record

    View all Application Forms

    Student Community: Where Questions Find Answers

    Ask and get expert answers on exams, counselling, admissions, careers, and study options.
    Download Careers360 App
    All this at the convenience of your phone

    • Regular Exam Updates

    • Best College Recommendations

    • College & Rank predictors

    • Detailed Books and Sample Papers

    • Question and Answers

    Scan and download the app

    OR

    Rank Predictor