For enthalpy 2, the number -63.79 kJ/mol H2SO4 was used for the calculation. How was this number obtained? I do not see it on the table here. Was linear interpolation used to determine enthalpy 2? b Answered: Demonstrate the calcu X +56°FSunny✰ bartleby.com/questions-and-answers/demonstrate-the-calculations-for-enthalpies-1-2-and-3./b593a7c4-0e37-4275-af71-29efd148137eHomework help starts here!Q Search=Demonstrate the calculations for enthalpies 1, 2, an...Mole ratio of water to sulfuric acid (r) = 8.2 (3.33*10-²/4.08*10-³)From the table of "Integral heats of solution and mixing at 25 °C or 77 °F", the enthalpy of mixing at (r= 8.2)is -63.79 kJ/mol H₂SO4.Therefore,H₂- 63.79= 1 lbm solutionΔΗ =kJmol H₂SO4Solution27 Btu + -279.5■AH =The values of enthalpies are,XNow the solution is at 77 °F.Specific enthalpy of 40 wt % H₂SO4 = 0.67 Btu/lbm.°FThe enthalpy of solution at 120 °F is calculated as follows:H31 lbm solution1200.67dT1 lb mol H₂SO498.08 lbHH₂ =x 0.67- 279.5XH3 = 28.81 BtuThe total enthalpy changes during the heating of solution to 120 °C becomes,AH₁ + AH₂ + AH31 lbm solution- 55.99ASK AN EXPERT1 mol0.0022046 lbmolBtulbm H₂SO477Btulbm solution.°FBtulbmBtu-SO4 x 0.4 lbm H₂SO4 + 28.81 Btulbm H₂1 lbm solutionXx 120 - 77 °F- 56Btu1bm0.9478 Btu1 kJCHAT√x MATH SOLVER☐ENGj Pausedx:7:06 AM5/22/2023 ||!PDF Elementary Principles of Chemica X PDF *Elementary Principles of Chemic X +56°FSunnyFile | E:/Elementary%20Principles%20of%20Chemical%20Processes,%204th%20Edition%20(%20PDFDrive%20).pdfDrawT Read aloudQ Searchr(mol H₂O/mol solute)0.511.52345TABLE B.11 Integral Heats of Solution and Mixing at 25°C²(AĤs) NaOH(s)kJ/mol NaOH10202530405010020050010002000500010 00050 000100 000500 000673 of 695■(AĤs) HCK(g)kJ/mol HCI-26.22-48.82-56.85-61.20-64.05-69.49-71.78-72.59-73.00-73.26-73.85-74.20-74.52-74.68-74.82-74.93-74.99-75.08-75.10CD-75.1428.87-34.43-37.74-42.51-42.8442.72-42.59-42.5142.34-42.26-42.38-42.47-42.55-42.68-42.72-42.80-42.89(AĤm) H₂SO4kJ/mol H₂SO4-15.73-28.07- 36.90-41.92- 48.99- 54.06-58.03-67.03-72.30-73.34-73.97-76.73-78.57-84.43-87.07-93.64-95.31-96.19"Adapted from J. C. Whitwell and R. K. Toner, Conservation of Mass and Energy, pp. 344-346.Copyright © 1969 by McGraw-Hill, Inc. Used with permission of McGraw-Hill.{"J6360DENGSign in(0)+O7:07 AM5/22/2023

Question

For enthalpy 2, the number -63.79 kJ/mol H2SO4 was used for the calculation.  How was this number obtained?  I do not see it on the table here. Was linear interpolation used to determine enthalpy 2? b Answered: Demonstrate the calcu X +56°FSunny✰ bartleby.com/questions-and-answers/demonstrate-the-calculations-for-enthalpies-1-2-and-3./b593a7c4-0e37-4275-af71-29efd148137eHomework help starts here!Q Search=Demonstrate the calculations for enthalpies 1, 2, an...Mole ratio of water to sulfuric acid (r) = 8.2 (3.33*10-²/4.08*10-³)From the table of &#34;Integral heats of solution and mixing at 25 °C or 77 °F&#34;, the enthalpy of mixing at (r= 8.2)is -63.79 kJ/mol H₂SO4.Therefore,H₂- 63.79= 1 lbm solutionΔΗ =kJmol H₂SO4Solution27 Btu + -279.5■AH =The values of enthalpies are,XNow the solution is at 77 °F.Specific enthalpy of 40 wt % H₂SO4 = 0.67 Btu/lbm.°FThe enthalpy of solution at 120 °F is calculated as follows:H31 lbm solution1200.67dT1 lb mol H₂SO498.08 lbHH₂ =x 0.67- 279.5XH3 = 28.81 BtuThe total enthalpy changes during the heating of solution to 120 °C becomes,AH₁ + AH₂ + AH31 lbm solution- 55.99ASK AN EXPERT1 mol0.0022046 lbmolBtulbm H₂SO477Btulbm solution.°FBtulbmBtu-SO4 x 0.4 lbm H₂SO4 + 28.81 Btulbm H₂1 lbm solutionXx 120 - 77 °F- 56Btu1bm0.9478 Btu1 kJCHAT√x MATH SOLVER☐ENGj Pausedx:7:06 AM5/22/2023 ||!PDF Elementary Principles of Chemica X PDF *Elementary Principles of Chemic X +56°FSunnyFile | E:/Elementary%20Principles%20of%20Chemical%20Processes,%204th%20Edition%20(%20PDFDrive%20).pdfDrawT Read aloudQ Searchr(mol H₂O/mol solute)0.511.52345TABLE B.11 Integral Heats of Solution and Mixing at 25°C²(AĤs) NaOH(s)kJ/mol NaOH10202530405010020050010002000500010 00050 000100 000500 000673 of 695■(AĤs) HCK(g)kJ/mol HCI-26.22-48.82-56.85-61.20-64.05-69.49-71.78-72.59-73.00-73.26-73.85-74.20-74.52-74.68-74.82-74.93-74.99-75.08-75.10CD-75.1428.87-34.43-37.74-42.51-42.8442.72-42.59-42.5142.34-42.26-42.38-42.47-42.55-42.68-42.72-42.80-42.89(AĤm) H₂SO4kJ/mol H₂SO4-15.73-28.07- 36.90-41.92- 48.99- 54.06-58.03-67.03-72.30-73.34-73.97-76.73-78.57-84.43-87.07-93.64-95.31-96.19&#34;Adapted from J. C. Whitwell and R. K. Toner, Conservation of Mass and Energy, pp. 344-346.Copyright © 1969 by McGraw-Hill, Inc. Used with permission of McGraw-Hill.{&#34;J6360DENGSign in(0)+O7:07 AM5/22/2023

Accepted Answer

The assumption is correct.
The value of enthalpy of mixing of H2SO4 at r=8.2 is obtained as -63.79…