Experimental solid-oxide fuel cells that use butane (C4H10C4H10) as the fuel have been reported recently. These cells contain composite metal/metal oxide electrodes and a solid metal oxide electrolyte. The cell half- reactions are Anode:C4H10(g)+13O2- (s)→4CO2(g)+5H2O(1)+26e-Cathode:02 (g)+4e-→202-(s) a) calculate the value of E• for the cell reaction at 25 °C b) calculate the value of the pK=-log(K) for the cell reaction at 25 °C (K is the equilibrium constant of the reaction) c) How many grams of butane are required to produce a constant current of 10.2 A for 7.40 h ? d)How many liters of butane at 20 °C and 788 mmHg pressure are required?
Experimental solid-oxide fuel cells that use butane (C4H10C4H10) as the fuel have been reported recently. These cells contain composite metal/metal oxide electrodes and a solid metal oxide electrolyte. The cell half- reactions are Anode:C4H10(g)+13O2- (s)→4CO2(g)+5H2O(1)+26e-Cathode:02 (g)+4e-→202-(s) a) calculate the value of E• for the cell reaction at 25 °C b) calculate the value of the pK=-log(K) for the cell reaction at 25 °C (K is the equilibrium constant of the reaction) c) How many grams of butane are required to produce a constant current of 10.2 A for 7.40 h ? d)How many liters of butane at 20 °C and 788 mmHg pressure are required?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter17: Electrochemistry And Its Applications
Section: Chapter Questions
Problem 92QRT
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Transcribed Image Text:Experimental solid-oxide fuel cells that
use butane (C4H10C4H10) as the fuel
have been reported recently. These
cells contain composite metal/metal
oxide electrodes and a solid metal
oxide electrolyte. The cell half-
reactions are
Anode:C4H10(g)+13O2-
(s)→4CO2(g)+5H2O(1)+26e-Cathode:02
(g)+4e-→202-(s)
a) calculate the value of E• for the cell
reaction at 25 °C
b) calculate the value of the
pK=-log(K) for the cell reaction at 25 °C
(K is the equilibrium constant of the
reaction)
C) How many grams of butane are
required to produce a constant current
of 10.2 A for 7.40 h ?
d)How many liters of butane at 20 °C
and 788 mmHg pressure are required?
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