Calculate the standard free energy (ΔG0) available from the sulfate reducing energy generating reaction and compare it to the energy derived from the aerobic oxidation. Which of the two modes of metabolism of ethanol provides more energy to the organism and why you think this is the case?
Science behind corrosion-test
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Corrosion
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
An underground storage tank has sprung a leak, sending 184 kilograms of ethanol into the
subsurface soil. Ethanol can be used as an electron donor under either aerobic (oxygen is the
electron acceptor) or sulfate reducing (sulfate is reduced to H2S) conditions. a) How many
electrons are transferred during the oxidation of ethanol (C2H5OH) to carbon dioxide (CO2)? b)
Construct the stoichiometric energy generating reaction from the half reactions associated with the
aerobic oxidation of ethanol to CO2. c) Construct the stoichiometric energy generating reaction
from the half reactions associated with oxidation of ethanol to CO2 under sulfate reducing
conditions. e) Calculate the standard free energy (ΔG0) available from the sulfate reducing energy
generating reaction and compare it to the energy derived from the aerobic oxidation. Which of the
two modes of
is the case?
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