Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT 2015
Exam
BITSAT
Year
2015
Subject
Chemistry
Chapter
Electrochemistry

BITSAT 2015 · Chemistry · Electrochemistry

The efficiency of fuel cell is given by the expression, is

The efficiency of fuel cell is given by the expression, η\eta is

Options

  1. Aη=−nFEcell ΔH×100\eta=-\frac{\mathrm{nFE}_{\text{cell }}}{\Delta \mathrm{H}} \times 100
  2. Bη=−nFEcell ΔS×100\eta=-\frac{\mathrm{nFE}_{\text{cell }}}{\Delta \mathrm{S}} \times 100
  3. Cη=−nFEcell ΔA×100\eta=-\frac{\mathrm{nFE}_{\text{cell }}}{\Delta \mathrm{A}} \times 100
  4. DNone of the above

Correct answer

A. η=−nFEcell ΔH×100\eta=-\frac{\mathrm{nFE}_{\text{cell }}}{\Delta \mathrm{H}} \times 100

Step-by-step solution

Efficiency of fuel cell is: η=−nFEcell ΔH×100\eta=\frac{-n F E_{\text{cell }}}{\Delta H} \times 100
Practice Electrochemistry on Quantrex Academy →

More from Electrochemistry

The pH of 0.5 L of 1.0 M NaCl solution after electrolysis for 965 s using 5.0 A current… BITSAT 2024Calculate the molarity of a solution containing 5 g of NaOH dissolved in the product of… BITSAT 2024When the same quantity of electricity is passed through the aqueous solutions of the… BITSAT 2024Which of the following solutions of KCl will have the highest value of specific… BITSAT 2023Given that E_ O_2 / H_2 O^ ^ ∘ =+1.23 V ; aligned & E_ S_2 O_8^ 2- / SO_4^ 2- ^ ^ ∘ =2.05… BITSAT 2023The conductivity of a weak acid HA of concentration 0.001 ~mol ~L^ -1 is 2.0 × 10^ -5 ~S… BITSAT 2023Electrode potential data are given below: Fe^ +3 (aq)+ ^ - Fe^ +2 (aq) ; E^ ^ ∘ =+0.77 V… BITSAT 2023Using the standard electrode potential, find out the pair between which redox reaction is… BITSAT 2022 Full Electrochemistry list All BITSAT PYQs