Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
A set reference point used by scientists which includes pressure at 1 atmosphere, temperature at 25 degrees Celsius (298K), and concentrations at 1 Molar for solutions.
Related terms
STP (Standard Temperature and Pressure): Specific set conditions often used in calculations involving gases; defined as zero degrees Celsius and one atmosphere pressure.