it is the year 2023 in a fertilizer plant ammonium sulphate is produce
It is the year 2023, in a fertilizer plant, ammonium sulphate is produced by reaction of ammonia and an
aqueous diluted solution of sulfuric acid. A colleague from your team, a mechanical engineer, was tasked
to size a heat exchanger to safely prepare solutions of sulfuric acid, but he is not familiar with the
thermodynamic calculations. You know that water is available at 100 F, whereas 40 wt. % sulfuric acid is
available at 120 F. Your colleague is in a rush to have a preliminary design and needs you to answer the
following calculations quickly.
If 450 lbm of the 40 wt% sulfuric acid is mixed with 175 lbm of pure water, what is the resulting
You were asked to inform the engineer the amount of heat required in BTU if the final
solution is needed at 100 F? Is the heat added or removed?
As a safety precaution, you were also tasked to determine the final temperature of the
solution if the mixing was carried out adiabatically./nSEP
40 50 60
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