Standard Temperature and Pressure (STP) is a set of conditions commonly used in scientific contexts to enable the comparison of gas properties. The standard conditions designated as STP are:
- Standard Temperature: 0 degrees Celsius (273.15 K)
- Standard Pressure: 1 atmosphere (101.325 kPa or 760 mmHg)
Under these conditions, one mole of an ideal gas occupies a volume of approximately 22.4 liters. It's important to note that the definition of STP can vary slightly depending on the field of study. For example, some organizations, like the International Union of Pure and Applied Chemistry (IUPAC), define STP slightly differently, using 0 degrees Celsius and 100 kPa as the pressure.