A fuel cell designed to react grain alcohol with oxygen has the
following net reaction:
C2H5OH(l) + 3 O2(g) –––> 2 CO2(g) + 3 H2O(l)
The maximum work that 1 mole of alcohol can yield by this process
is 1320 kJ. What is the
theoretical maximum voltage that this cell can achieve?
NOTE: The first step in solving this problem is to determine n, the
number of moles of electrons
transferred when this reaction takes place as written.
A) 1.14 V B) 2.28 V C) 2.01 V D) 0.760 V E) 13.7 V
no. of electron transferred = change in oxidation no. of oxygen * 6 = (0- (-2)) * 6 = 12
now for a cell reaction
G = - n F Ecell
-1320 * 1000 = - 12 * 96500 * Ecell
so Ecell = 1320000 / (12*96500) = 1.139
so maximum voltage of cell = 1.14 Volt (Answer is option A)
A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C2H5OH(l)...
3. A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C2H5OH(1) + 302(g) → 2CO2(g) + 3H2O(1) The maximum work one mole of alcohol can yield by this process is 1320 kJ. What is the theoretical maximum voltage this cell can achieve?
QUESTION 3 A fuel cell designed to react grain alcohol with oxygen has the following net reaction: C2H5OH (1) + 3 O2(g) 2 CO2 (g) + 3 H20 (1) The free energy change for this reaction is -1320 k). What is the potential associated with this reaction?
Gases are most likely to be found in a phase diagram under conditions of high temperature and high pressure high temperature and low pressure low temperature and high pressure low temperature and low pressure moderate temperature and pressure Problems in this section are worth six each plus 4 additional point for work shown in the blue booklet. The half-life of the radioisotope^158 Eu is 0.77 h. How much time is required for a 160.0-g sample of^158 Eu to decay to...
Methanol, CH3OH (l), combusts according to the following equation: 2 CH3OH (l) + 3 O2 (g) → 2 CO2 (g) + 4 H2O (l) ∆rHo (298 K) = −1452 kJ Here is a list of Entropies of formation: S (J K-1 mol-1) at 298 K CH3OH (l) =126.8 O2 (g) = 205.14 CO2 (g) = 213.74 H2O = (l) 69.91 (a) If the above reaction was used in a fuel cell, say, to perform work, what will be the maximum...
(a) A muscle can be thought of as a fuel cell, producing work from the metabolism of glucose (C6H1206): C6H1206 (glucose) +202(9) + 2H2O(l) + CO2(g). (0.1) Here g and I refer to the gaseous and liquid states, respectively. Using data given in the table, please determine the values of AH and AG for this reaction for one mole of glucose, assuming that the reaction takes place at room temperature and atmospheric pressure. Substance CH 20. (glucose) 0 (9) H200...
help! Be sure to answer all parts. Enter a net ionic equation for the following reaction (including states of matter): CaCl2(aq) + MnSO4(aq) → Write the net ionic equation (including physical states) for the reaction of NaBr(ag) with AgNO3(aq). Click in the answer box to activate the palette. Be sure to answer all parts. Calculate the number of g of o, that will react with 6.28 mol of CzHg. Enter your answer in scientific notation. The balanced equation is: C3Hg(8)...
Name FUL L U Stoichiometry worksheet (Lab) Please complete the following problems during lab. Do all of your work on a separate sheet of paper. Show all of your work for full credit and circle your final answer. 1) How many moles of CO2 are produced when 2.5 moles of O2 react according to the following equation? C3H8 (8) +502 (8) ► 3002 (8) + 4H20 (8) 2) In the reaction 2 C(s) + O2(g) 66.0 g of carbon monoxide?...
5) How many moles of hydrogen gas are needed to react with oxygen to form one mole of 5) water? 2H2(8) + O268) - 2H20(1) A) 4 mol B) 1 mol C) 2 mol D) 0.5 mol E) 6 mol 6) Incomplete combustion occurs when there is insufficient oxygen to react with a compound. The suffocating gas carbon monoxide is a product of incomplete combustion. How many moles of oxygen gas are required for the complete combustion of 11.0 moles...
12. (30 Points) A muscle can be thought of as a fuel cell, producing work from the metabolism of glucose C.H1206+603-6002+6H20. (a) Determine AH for the reaction (1) Determine AG for the reaction (c) What is the maximum amount of work that a muscle can perform, for each mole of glucose consumed, assuming ideal operation (d) How much heat is transferred in this process is it in or out of system?). IRUN II 30), LKR ), and Anderson (1996). Please...
Calculate the cell potential for the following reaction as written at 25.00 °C, given that [Mg2 ] = 0.774 M and [Sn2 ] = 0.0190 M. Standard reduction potentials can be found here. Reduction Half-Reaction Standard Potential Ered° (V) F2(g) + 2e– → 2F–(aq) +2.87 O3(g) + 2H3O+(aq) + 2e– → O2(g) + 3H2O(l) +2.076 Co3+(aq) + e– → Co2+(aq) +1.92 H2O2(aq) + 2H3O+(aq) + 2e– → 2H2O(l) +1.776 N2O(g) + 2H3O+(aq) + 2e– → N2(g) + 3H2O(l) +1.766 Ce4+(aq) + e– → Ce3+(aq)...