Determine the standard free energy (in kJ/mol) of the following cell: Cr2O72- + Br- → Cr3+ + Br2(l)
Determine the standard free energy (in kJ/mol) of the following cell: Cr2O72- + Br- → Cr3+...
A Reaction is given: ½Br2(l) --> Br(g) Ho = 112kJ/mol The bond enthalpy of Br-Br is 193 kJ/mol A. Formulate the vaporization process of 1 mol bromine Br2(l). B. Calculate the enthalpy of the vaporization process bromine. Show calculations C. Calculate the energy invested \ emitted by the evaporation of 3.2 gr of bromine. Show calculations. (Explain how you determined whether the energy is invested or emitted in this process). D.A Reaction is given: ½H2(g) + ½Br2(l) --> HBr(g) Ho...
8. The standard free energy of formation of L-serine (s) is -508.8 kJ/mol at 25 °C. The compound forms a saturated solution in water at 4.02 moles/kg at which the activity coefficient is y = 0.602. Calculate AG (aq)(L – serine). (Ans. -511.0 kJ/mol)
The standard free energy of activation of a reaction A is 71.6 kJ mol–1 (17.1 kcal mol–1) at 298 K. Reaction B is one million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol–1 (2.39 kcal mol–1) more stable than the reactants. (a) What is the standard free energy of activation of reaction B?
The standard free energy of activation of a reaction A is 77.3 kJ mol–1 (18.5 kcal mol–1) at 298 K. Reaction B is ten million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol–1 (2.39 kcal mol–1) more stable than the reactants. (a) What is the standard free energy of activation of reaction B?
Use the cell notation to answer the question: Cr(s) | Cr3+(aq) || Br–(aq) | Br2(g) | Pt(s) What is the reducing agent? Group of answer choices Br2(g) Cr3+(aq) Pt(s) Cr(s) Br–(aq)
Please circle final answer Calculate the change in free energy (AG) for the following standard cell between Barium and Copper. Recall AG = -nFEcell, and F = 9.65 x 10 C/mol Ba Ba2 (aq) + 2e, E red -2.90 V 2e+Cu2+ (aq) Cus), Ered = +0.337 V +625 kJ/mol +495 kJ/mol -625 kJ/mol 495 kJ/mol
Use standard reduction potentials to calculate the standard free energy change in kJ for the reaction: Fe3+(aq) + Cr2+(aq) Fe2+(aq) + Cr3+(aq) Answer: kJ K for this reaction would be than one.
A reaction has a standard free-energy change of -11.40 kJ mol-1(-2.725 kcal mol-1). Calculate the equilibrium constant for the reaction at 25°C.
A reaction has a standard free-energy change of –16.50 kJ mol-1(-3.944 kcal mol-1). Calculate the equilibrium constant for the reaction at 25 °C. Keq = _______
Determine the value of AGº for the following reaction if the standard potential of the cell where that reaction occurs is E = +1.08 V. 2 Cr (s) + 3 Cu2+ (ac) → 2 Cr3+ (ac) + 3 Cu (s) A. -2.08 x 102 kJ/mol B. -6.25 x 102 kJ / mol C. -3.13 x 102 kJ/mol D. -4.17 x 102 kJ / mol E. -5.21 x 102 kJ/mol