Calculate Enthalpy Change For Silica And Hydrofluoric Acid Reaction

Question

Hexafluorosilicic acid is made by the reaction of silica and hydrofluoric acid by the following reaction

6HF + SiO2 → H2SiF6 + 2H2O                       ΔHr = -670 kJ/mol

What is the enthalpy change if the feed into a reactor contains 3 mol HF and 1.5 mol SiO2?

Summary

The question belongs to Chemical Engineering and it discusses about calculation of enthalpy change in reaction of silica and hydrofluoric acid.

Total Word Count 45

Download Full Solution

Comments

  • HWA
    Rasha

    this is a very good website

  • HWA
    maani

    I have 50 questions for the same test your page is showing only 28

  • HWA
    joeanne

    hi can you please help or guide me to answer my assignments. thanks

  • HWA
    joeanne

    hi can anyone help or guide me to my assignments. thanks

  • HWA
    Monik


  • HWA
    Cristina

    This solution is perfect ...thanks

  • HWA
    Janete

    Hello Allison,I love the 2nd image that you did! I also, had never heard of SumoPaint, is something that I will have to exolpre a bit! I understand completely the 52 (or so) youtube videos that you probably watched. Sometimes they have what you want, sometimes they don't! However, it is always satisfying when you are able to produce something that you have taught yourself. Great job!Debra 0 likes

  • HWA
    Sandeep

    Perfect bank of solution. 

  • HWA
    Oxana

    great !

  • HWA
    Paul Brandon-Fritzius

    thanks for the quick response. the solution looks good. :)

  • HWA
    tina Johnson

    thnx for the answer. it was perfect. just the way i wanted it. 

  • HWA
    Giuseppe

    works fine.