Question 5 1 pt If the redox reaction below has a ?G?of-363 kJ/mol, what is E°...
What is E°cell (in V) for a redox reaction that has ΔrG° = -308 kJ mol-1 at 25°C ? Assume 2 electrons are transferred in the balanced redox reaction.
The standard reaction Gibbs energy for the redox process listed below is -206 kJ mol-1. Calculate the standard cell potential. MnO4-(aq) + NO(g) ⟺ MnO2(s) + NO3-(aq) Given these two half-rxns: MnO4-(aq) + 4 H+(aq) + 3 e-⇔ MnO2(s) + 2 H2O(l) NO(g) + 2 H2O(l) ⇔ NO3-(aq) + 4 H+(aq) + 3 e-
(a) Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ VS.-). Electron stoichiometry need not be used to interconvert a Gibbs free energy change and a reaction emf. A spontaneous reaction has a negative Gibbs free energy change and a positive emf. A coulomb of particles...
For the reaction below, ΔHo is −312.2 kJ/mol and ΔSo is −452.4 J/mol-K. 2 Cu(s) + O2(g) ⇌ 2 CuO(s) Fill in the blanks: This reaction is ___ at room temperature, and the equilibrium shifts to the ____ at higher temperatures. - at equilibrium, right - nonspontaneous, left - spontaneous, left - at equilibrium, left - spontaneous, right - nonspontaneous, right
What is the value for for the redox reaction shown E°cell below? and is the reaction spontaneous? Sn2+ (aq) + 2 Ag(s) → Sn(s) + 2 Ag+(aq) a) -0.94 V b) -0.66 V c) +0.66 V d) +0.94 V
Part 1.) Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. 1. The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ vs. -). 2. A mole of particles is more particles than a coulomb of particles. 3. A spontaneous reaction has a positive Gibbs free energy change and a negative emf. 4. A Gibbs free...
Question 1 1 pts Calculate A Gas for the reaction 4NH3(g) + 30,(g) —2N2 (g) + 6H2O() from AG® values in Table 6 of your chem-132 Tables. Time ELE Attempt 3 Minu A-1141.6 kJ B.-571.2 kJ C. 312.2 kJ D. 222.7 kJ E.-1357.0 kJ ОА OB Ос OD ОЕ Question 2 1 pts For a chemical reaction, if A Hºse is positive and AS is negative, will the reaction be spontaneous or nonspontaneous at LOW temperatures? spontaneous nonspontaneous No answer...
Half-ReactionE°(V)Fe^(2+)(aq)+2e^(-)rarrFe(s)-0.44Hg^(2+)(aq)+2e^(-)rarrHg(l)0.86Ag^(+)(aq)+e^(-)rarrAg(s)0.80Cu^(2+)(aq)+2e^(-)rarrCu(s)0.34Zn^(2+)(aq)+2e^(-)rarrZn(s)-0.76What is the value of Δ G° (in kJ ) for the following balanced redox reaction at 25.0℃ ?Hg²⁺(a q)+Fe(s) ⟶ Hg(l)+Fe²⁺(a q)a) -40.5 kJb) -81.1 kJc) -125 kJd) -251 kJ
Calculate the standard Gibbs free energy changes at 25 °C for each of the reactions shown below using the Eº values given. Select whether each of these reactions is nonspontaneous, at equilibrium, or spontaneous under standard conditions. (a) 2 Lit(aq) + 2 I'(aq) = 2 Li(s) + 1 12(5) ° = -3.586 V AGC= X kJ/mol nonspontaneous at equilibrium spontaneous (b) 2 CO3+ (aq) + 1 Hg(0) = 2 Co2+ (aq) + 1 Hg2+(aq) ° = 0.988 V AGº =...
a) Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. a)The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ vs. -). b)Faraday's constant must be used in order to interconvert a Gibbs free energy change and a reaction emf. c)Faraday's constant is used to interconvert coulombs of electrons and moles of electrons. d)A Gibbs free...