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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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Chapter
Section
BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

What mass of CO2, a greenhouse gas, is produced per liter of fuel (assuming complete combustion)?

Interpretation Introduction

Interpretation:

The mass of CO2 produced per liter of fuel has to be determined.

Concept Introduction:

Heat energy required to raise the temperature of 1g of substance by 1k.Energy gained or lost can be calculated using the below equation.

  q=C×m×ΔT

Where,

  q= energy gained or lost for a given mass of substance (m),

  C =specific heat capacity

  ΔT= change in temperature

Explanation

Given,

Molar mass of ethanol is 46.07g

Molar mass of carbon dioxide is 44.01g

Molar mass of octane is 114.2g

Mass of CO2 per liter of ethanol=

=1.000L(785gC2H5OH/L)(1molC2H5OH46.07gC2H5OH)(2molCO21molC2H5OH)(44.01gCO21molCO2)

=1

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