IUPAC Green Book[3] in that, in terms of its definition [4], pH = âlg a. H. it involves a single ion quantity, the activity of the hydrogen ion, which is immeasurable by any ther-. modynamically valid method and requires a convention for its evaluation.
The series officially premiered on July 17, 1999. It has received worldwide critical acclaim since its premiere and gained enormous popularity by its second season. A feature film, The SpongeBob SquarePants Movie, was released in theaters on November 19, 2004, and a sequel was released on February 6, 2015.
A feature film, The SpongeBob SquarePants Movie complements the series, and received its premiere in theaters in the United States on November 19, 2004. In season five, the series' first television film, Atlantis SquarePantis, was broadcast for the first time on November 12, 2007 after a television marathon.