Explore BrainMass

Explore BrainMass

    How much steam is required and what is the final conc of H2SO4 in tank?

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Please see the attached file for the fully formatted problem(s).

    An insulated tank, open to the atmosphere, contains 1,500 (lbm) of 40-wt-% sulfuric acid at 60oF. It is heated to 180oF by injection of live saturated steam at 1 atm, which fully condenses in the process. How much steam is required, and what is the final concentration of H2SO4 in the tank?

    [TABLE]

    © BrainMass Inc. brainmass.com December 24, 2021, 4:49 pm ad1c9bdddf
    https://brainmass.com/physics/second-law-of-thermodynamics/how-much-steam-is-required-and-what-is-the-final-conc-of-h2so4-in-tank-9509

    Attachments

    Solution Preview

    From steam tables the enthalpy of saturated steam at 1 atm is 1150.5 Btu/lb.

    For acid at 40% and 60 F H_acid=-98 Btu/lb.

    Use the first law for open systems:

    sum(m_in H_in)=sum(m_out H_out)

    m_steam *H_steam(sat, 1 atm) + m_acid* H_acid(40%, 60 F) = (m_steam+m_acid)*H_acid(x%, 180 F).

    take the ratio ...

    Solution Summary

    The amount of steam and the final concentration of H2SO4 are calculated.

    $2.49

    ADVERTISEMENT