Find the AH of the following reaction: Pb + PbO2 + 2H2SO4 ---> 2PbSO4 + 2H20...
The lead-acid storage battery is the oldest rechargeable battery in existence. It was invented in 1859 by French physician Gaston Plante and still retains application today, more than 150 years later. There are two reactions that take place during discharge of the lead-acid storage battery. In one step, sulfuric acid decomposes to form sulfur trioxide and water: H2SO4 (l) → SO3 (g) + H2O (l) ΔH=+113.kJ In another step, lead, lead(IV) oxide, and sulfur trioxide react to form lead(II) sulfate:...
Lead (II) sulfate reacts with water in the following reaction: 2PbSO4(s) + 2H2O(l) -> Pb(s) + PbO2(s) + 2H2SO4(l). 3. Lead (II) sulfate reacts with water in the following reaction: Substance (kJ/mol): -285.8 277.4 PbS040 -920.0 H20 Pb (5) H2SO4 -814.0 a. What is the AHf of Pb ()? Write your answer in the table above. b. Use the standard heats of formation (in the table below) of reactant and product to calculate the AHoxn of the (Show ALL your...
18. Identify the oxidant and reductant of the following reaction in a lead-acid battery. Pb(s) + PbO2(s) + 2H2SO4(aq) → 2PbSO4(s) + 2H2O(l)
Part C Given the following reactions 2H2 (9) + O2(g) → 2H20 (9) AH = - 483.64 kJ 2H20 (1) ► 2H2(g) + O2 (9) AH = 571.66 kJ Calculate the enthalpy for the condensation of water vapor to liquid, given by this reaction: H2O(g) + H20 (1) +44.01 kJ +88.02 kJ 0 -44.01 kJ -88.02 kJ Submit Request Answer
QUESTION 7 AH® - -560 kJ Look at this reaction: 2H2(g) + O2(9) --> 2H20(1 Which one of the following statements is true? Heat is absorbed during the reaction The reaction is endothermic The enthalpy change is positive This reaction is exothermic
Find. AH°rxn for the reaction 2Ag2S(s) + 2H20(1) 4Ag(s) + 2H2S(9) + O2(g). [AH: (Ag2S(s)) = -32.6 kJ/mol; AHF (H2S(g)) = -20.5 kJ/mol; AH (H2O(0)) = -285,5 kJ/mol] O 5752 kJ/mol O 565.2 kJ/mol O None of the above O 585.2 kJ/mol O 595.2 kJ/mol
Calculate AG° (kJ/mole) at 298 K for the reaction below: H2SO4(1) <H2O(1)+ SO3(g) K=2.07 x 10-12 Enter a number to 2 decimal places.
You want to make a battery using the following reactions: PbO2 + 4H+ + SO42- + 2e ---> PbSO4(s) + 2H20 Ni2+ + 2e ---> Ni ° = +1.69 E° = -0.25 Which is being reduced? Which is being oxidized? Which is the anode? Which is the cathode? What is the formula to calculate Eºcell? What is Eºcell?
NEED ANSWERS ASAP PLZ QUESTION 4 AH° = -560 kJ Look at this reaction: 2H2(g) + O2(g) --> 2H20(1) Which one of the following statements is true? O Heat is absorbed during the reaction O The reaction is endothermic O The enthalpy change is positive O This reaction is exothermic QUESTION 3 If AH = 25 J for a certain process, that process O releases heat O is exothermic. O is endothermic. O can't tell
Starting with the standard free energies of formation from the following table, calculate the values of ΔG° and E°cell of the following reactions. Substance ΔΔG°f (kJ/mol) FeO(s) -255.2 H2(g) 0 Fe(s) 0 H2O(l) -237.2 Pb(s) 0 O2(g) 0 H2SO4(aq) -744.5 PbSO4(s) -813.0 1) FeO(s) +H2(g) ----Fe(s) +H2O(l) change in G=18kj E Cell= v 2) 2Pb(s)+O2(g)+2H2SO4(aq)--------2PbSO4(s)+2H2O(l) change in G=-611.4 E°cell = V