Chemistry In Focus
Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Chapter 14, Problem 43E
Interpretation Introduction

Interpretation:

The hardware costs perkillowatthour and others costs which are involved in the generation of electricity are to be calculated with given cost of MCFC and lifetime.

Concept Introduction:

Oxidation is the addition of an electronegative element or the removal of an electropositive element in a chemical reaction.

Reduction is the addition of an electropositive element or the removal of an electronegative element in a chemical reaction.

A chemical reaction in which oxidation process and reduction process take place simultaneously is called a redox reaction.

An oxidizing agent is a substance that has the capacity to oxidize other substances and get reduced in a chemical reaction.

A reducing agent is a substance that has the capacity to reduce other substances and get oxidized in a chemical reaction.

The hydrogen-oxygen fuel cell is a device that generates electricity by the chemical reaction between a source fuel and an oxidant.

In a fuel cell, the chemical energy is directly converted into electricity by the oxidation of methane.

In conventional power plants where methane is used as a fuel, the electricity is generated by the oxidation of methane.

The three steps involved in the production of electricity are as:

chemicalenergy1heat energy2mechanical energy3electrical energy

The molten carbonate fuel cells use potassium carbonate as an electron transfer medium and methane is used as a fuel.

The total hours of operation are calculated as.

Thetotalhoursofoperation=Totalyears×hoursperday×daysperyear.

The hardware costs perkillowatthour are calculated as:

Thehardwarecosts=MCFCcostsThetotalhoursofoperation.

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