• Medicine and Allied Sciences
  • Engineering and Architecture
  • Management and Business Administration
  • Law
  • Animation and Design
  • Media, Mass Communication and Journalism
  • Finance & Accounts
  • Computer Application and IT
  • Pharmacy
  • Hospitality and Tourism
  • Competition
  • School
  • Study Abroad
  • Arts, Commerce & Sciences
  • Learn
  • Online Courses and Certifications
NEET PG 2024 Cut off Reduce by NBEMS - Qualifying Percentile & Branch-wise Expected Cutoff
  1. Home
  2. NEET
  3. Study Material
  4. Gibbs Free Energy of Reaction MCQ - Practice Questions with Answers

Gibbs Free Energy of Reaction MCQ - Practice Questions with Answers

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

Quick Facts

  • Feasibility and Gibbs Free Energy of Reaction is considered one the most difficult concept.

  • 27 Questions around this concept.

Solve by difficulty

QuestionEASY

If the \mathrm{E^o_{cell}} for a given reaction has a negative value, which of the following gives the correct relationships for the values of \mathrm{\Delta G^ \circ} and Keq?

View Solution

For the reduction of silver ions with copper metal, the standard cell potential was found to be +0.46 V at 25°C. The value of standard Gibbs energy, \mathrm{\Delta G^{\circ}} will be (F=96500 C mol-1)

View Solution

The electrode potentials for

\mathrm{Cu^{2+}_{(aq)}+e^{-}\rightarrow Cu^{+}_{(aq)}}

and \mathrm{Cu^{+}_{(aq)}+e^{-}\rightarrow Cu_{(s)}}

are +0.15 V and +0.50, respectively. The value of \mathrm{E^o_{Cu^{2+}/Cu}} will be:

View Solution

NEET 2024: Cutoff (OBC, SC, ST & General Category)

NEET 2024 Admission Guidance: Personalised | Study Abroad

NEET 2025: Syllabus | Most Scoring concepts | NEET PYQ's (2015-24)

NEET PYQ's & Solutions: Physics | Chemistry | Biology

The values of \Delta H \ and \ \Delta S for the reaction, C_{\left ( graphite \right )}+CO_{2}\ _{\left ( g \right )}\rightarrow 2CO_{\left ( g \right )}  are 170 kJ and 170JK^{-1}, respectively. The reaction will be spontaneous at

View Solution

Given

E_{Cl_{2}/Cl^{-1}}^{0}=1.36V,E_{Cr^{3 +}/Cr}^{0}=-0.74V

E_{Cr_{2}O_{7}^{2-}/Cr^{3+}}^{0}=1.33V,E_{MnO_{4}^{-}/Mn^{2+}}^{0}=1.1V

Among the following, the strongest reducing agent is :

View Solution

Given below are two statements: one is labeled as Assertion A and the other is labeled as Reason R :
Assertion A: In equation \Delta G=-n F E_{\text {cell }} , value of \Delta G depends on n.
Reasons  R : E_{\text {cell }} is an intensive property and \Delta G  is an extensive property.

In the light of the above statements, choose the correct answer from the options given below :

View Solution

Concepts Covered - 1

Feasibility and Gibbs Free Energy of Reaction

Let n faraday charge be taken out of a cell of emf E, then work done by the cell will be calculated as:
Work = Charge × Potential
Work done by the cell is equal to the decrease in the free energy.

-\Delta \mathrm{G}=\mathrm{nFE}

Similarly, maximum obtainable work from the cell at standard condition will be:

\mathrm{W}_{\max }=\mathrm{nF} \mathrm{E}_{\mathrm{cell}}^{0} \quad \text { where } \mathrm{E}_{\mathrm{cell}}^{0}=\text { standard emf of standard cell potential }

\mathrm{-\Delta G^{\circ}=n F E_{\text {cell }}^{0}}

Variation of E.M.F. (Ecell) with Temperature
The temperature coefficient of e.m.f. of the cell is written as:

\Delta \mathrm{G}=\Delta \mathrm{H}+\mathrm{T}\left(\frac{\mathrm{d}(\Delta \mathrm{G})}{\mathrm{dT}}\right)_{\mathrm{Const.} \text {Pressure }}

\Rightarrow \quad-\mathrm{nFE}_{\mathrm{cell}}=\Delta \mathrm{H}+\mathrm{T}\left(\frac{\mathrm{d}\left(-\mathrm{nFE}_{\mathrm{cell}}\right)}{\mathrm{dT}}\right)_{\mathrm{P}} \quad\quad\quad\left[\because \Delta \mathrm{G}=-\mathrm{nFE}_{\mathrm{cell}}\right]

\Rightarrow \quad\left(\frac{\mathrm{dE}_{\mathrm{cell}}}{\mathrm{dT}}\right)_{\mathrm{P}}=\frac{\Delta \mathrm{H}}{\mathrm{nFT}}+\frac{\mathrm{E}_{\mathrm{cell}}}{\mathrm{T}}

Enthalpy Change: From above equation, we have:

\Delta \mathrm{H}=\Delta \mathrm{G}-\mathrm{T}\left(\frac{\mathrm{d}}{\mathrm{dT}}(\Delta \mathrm{G})\right)_{\mathrm{P}}

Thus, enthalpy(ΔH) is given as:

\Delta \mathrm{H}=-\mathrm{nF}\left[\mathrm{E}_{\mathrm{cell}}-\mathrm{T}\left(\frac{\mathrm{dE}_{\mathrm{cell}}}{\mathrm{dT}}\right)_{\mathrm{P}}\right]

Entropy change: For entropy change we have:

\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}

\Delta \mathrm{S}=-\left(\frac{\mathrm{d}}{\mathrm{dT}}(\Delta \mathrm{G})\right)_{\mathrm{P}}=\mathrm{nF}\left(\frac{\mathrm{dE}_{\mathrm{cell}}}{\mathrm{dT}}\right)_{\mathrm{P}}

Study it with Videos

Feasibility and Gibbs Free Energy of Reaction

Study other Related Concepts

Gibbs Free Energy of Reaction Current Topic

Electrochemistry
Electrochemical Series
Faraday’s Laws of Electrolysis
Galvanic Cells
Salt Bridge
EMF of a Cell
Standard Hydrogen Electrode
Gibbs Free Energy of Reaction
Nernst Equation
Concentration Cells

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

Get Answer to all your questions

NEET Articles

How Many Days Left for NEET 2025? - Countdown NEET 2025
Dec 19, 2024
NEET Biometric Attendance 2025 by NTA - Check Attendance Rules
Dec 19, 2024
NTA Report on NEET 2025 - Check Latest Update at exams.nta.ac.in
Dec 19, 2024
NEET OMR Sheet Sample 2025 PDF: Answer Sheet For Practice
Dec 19, 2024
Crack NEET 2025 in 5 Months: Preparation Strategy Tips & Study Plan
Dec 19, 2024
Assam MBBS Application Form 2024: Round 2 Registration (Started), Fees, How to Fill
Dec 19, 2024
AMU MBBS Counselling 2025: Dates, Registration, Choice Filling, Seat Allotment
Dec 19, 2024
Minimum Marks Required in NEET 2025 for MBBS Category-Wise
Dec 19, 2024

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

NEET College Predictor
Apply

Know possible Govt/Private MBBS/BDS Colleges based on your NEET rank

NEET Companion
Apply

Register for Careers360 NEET Counseling & Admission Guidance Service.

TOEFL ® Registrations 2024
Apply

Accepted by more than 11,000 universities in over 150 countries worldwide

Manav Rachna-MRIIRS Allied Health Sciences Admissions 2025
Apply

Admissions open for Bachelor of Physiotherapy, B.Sc Nutrition & Dietetics ,B.Sc Food Science & Technology

View All Application Forms
News and Notifications
NEET syllabus 2025 out; NMC uploads subject-wise topics
December 17, 2024 - 04:44 PM IST
What changes in NEET UG? Experts’ panel suggests multi-stage exam, security overhaul, simpler process to NTA
December 17, 2024 - 04:22 PM IST
NEET 2025 registration date soon; MBBS, BDS cut-offs in Rajasthan colleges
December 15, 2024 - 06:30 PM IST
Max Healthcare Foundation launches Max Medical Scholarship programme for 100 MBBS Students
December 11, 2024 - 02:51 PM IST
NEET UG 2025 exam date soon; know cut-off for MBBS in top government medical colleges
December 04, 2024 - 08:06 PM IST
MP AYUSH NEET UG 2024 stray vacancy choice-filling ends today; reporting from December 6
December 03, 2024 - 10:26 PM IST
Maharashtra NEET UG Counselling: HC asks medical college to admit student denied MBBS seat in fee row
December 03, 2024 - 06:47 PM IST
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

National Eligibility cum Entrance Test      
NEET 2025 Syllabus
Back to top