Why water is not directly added to sulphuric acid for
dilution?

Answer Posted / harsh

Since, acid is more viscous than water if we add water to
acid mixing will not be proper & thereby heat dissipation
becomes difficult. The added water takes away the
dissipated heat rapidly forming steam & creating a Flashing
or Explosion. Therefore water shouldn't be added to acid
and acid should be added to water for the dilution purpose.

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