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hi there, I need help with the following problems. Thank you! Worksheet 3 - CH 19 (10 points) 1. For each reaction predict if AS
hi there, I need help with the following problems. Thank you!
Worksheet 3 - CH 19 (10 points) 1. For each reaction predict if AS is positive or negative briefly state your reason. a) N2 (g) + 3 H2(g) + 2NH3(g) b) 2 LiOH(aq) + CO2 (g)Li2CO3(aq) + H2O (1) c) H2(g) + Cl2 (g) 2 HCl (g) d) Ba2+ (aq) + S02 (aq) BaSO4(s) 2. Use appendix C to calculate AS for the following a) CH4 (g) + 2 O2 (g) CO2 (g) + 2 H20 (g) b) 6 CO2 (g) + 6 H2O (1) CH20. (s) + 6 O2 (g) c) P.010 (s) + 6 H2O (1) 4 H3PO4 (aq) d) NH3(g) + HCl (g) NH4Cl (s) 3. For each of the following pairs, predict which has more entropy per mole at a given temperature a) Br2 (1) or Br2 (g) b) NO(g) or NO2 (g) c) NH4Cl (s) or NH4Cl(aq) d) 2 mol O (g) or 1 mol O2 (g) 4. For each reaction predict if AG is positive or negative at 25C if it is not spontaneous predict at what temperature it might become spontaneous. a) N2(g) + O2 (g) 2 NO (g) AH = 180.74 kJ/mol and AS = 24.74 J/mol K b) 2 CH2(g) + 5 O2 (g) + 4CO2 (g) + 2 H20 (1) AH = -2599.2 kJ/mol and AS' = -432.38 J/mol K c) 2 KCIO: (s) + 2 KCl(s) + 3 02 (g) AH = 1428.56 kJ/mol and AS = 514.6 J/mol K d) N2(g) + 3 H2(g) 2 NH3(g) AH = -92.38 kJ/mol and AS = -198.24 J/mol K 5. Calculate AG in kJ/mol for the reaction below at 25C. 2SO2(g) + O2(g) 250 (9) Substance H(kJ/mol) SO2(g) O2(g) 0 SO(g) -395 -297 S(J/mol K) 249 205 256 Rev: 10/20/2020 Worksheet 3 - CH 19 (10 points) 6. Using the value of AG you calculated in problem #5 for the reaction below at 25C. 2SO2(g) + O2(g) 280(g) to calculate AG under the following conditions a) 100. atm SO2, 100. atm O2, 1.00 atm SO: b) 2.00 atm SO2, 1.00 atm O2, 10.0 atm SO3 c) 1.00 atm SO2, 1.00 atm O2, 1.00 atm SO: 7. At 25 C the Ka for aspirin is 3.0 x 104 calculate AG for the reaction at 25 C: CH3O4 (aq) + H2O (I) = H30+ (aq) + CH 04 (aq) 8. Using the value of AG you calculated in problem #5, calculate the Kp at 25C for the reaction 2SO2(g) + O2(g) 2503(g) Are products or reactants favored at equilibrium? Why? 9. Determine the value of AG at 25C for the reaction below given the following data: CH4(g) AG = 68 kJ/mol, H2O(g) AG = -229 kJ/mol, CH H2OH(aq) AG = -175 kJ/mol C2H4 (g) + H2O (g) CH3H2OH(aq) 10. Chloroform, CHCl3, has a normal boiling point of 61 C and it enthalpy of vaporization is 29.24 kJ/mol, what is its entropy of vaporization in J/mol K at 61 C? Before you calculate it write a chemical equation for this process and predict do you expect entropy to be positive or negativeStep by Step Solution
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