1. The enthalpy of combustion of ethanol is determined by heating a known [ mass of tap water in a glass beaker with a flame of burning ethanol. Which will lead to the greatest error in the final result? А. Assuming the density of tap water is 1.0 g cm-3 В. Assuming all the energy from the combustion will heat the water С. Assuming the specific heat capacity of the tap water is 4.18 J g-1 K-1 D. Assuming the specific heat capacity of the beaker is negligible

Introduction to Chemical Engineering Thermodynamics
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Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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1. The enthalpy of combustion of ethanol is determined by heating a known [
mass of tap water in a glass beaker with a flame of burning ethanol.
Which will lead to the greatest error in the final result?
А.
Assuming the density of tap water is 1.0 g cm-3
В.
Assuming all the energy from the combustion will heat the water
С.
Assuming the specific heat capacity of the tap water is 4.18 J g-1 K-1
D.
Assuming the specific heat capacity of the beaker is negligible
Transcribed Image Text:1. The enthalpy of combustion of ethanol is determined by heating a known [ mass of tap water in a glass beaker with a flame of burning ethanol. Which will lead to the greatest error in the final result? А. Assuming the density of tap water is 1.0 g cm-3 В. Assuming all the energy from the combustion will heat the water С. Assuming the specific heat capacity of the tap water is 4.18 J g-1 K-1 D. Assuming the specific heat capacity of the beaker is negligible
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