Standard Temperature and Pressure (STP) is a reference point used in chemistry to provide a standard set of conditions for comparing the behavior of gases and other substances. At STP, temperatures are set at 0 degrees Celsius (273.15 Kelvin), and pressure is 1 atmosphere (101.325 kPa), allowing for consistent measurements and calculations.

Standard Temperature And Pressure (STP)

Standard Temperature and Pressure (STP) is a reference point used in chemistry and physics to define a set of conditions for experimental measurements, typically set at 0 degrees Celsius and 1 atmosphere of pressure. It provides a basis for comparison and calculation of gas properties, ensuring consistency across scientific research and industry applications.

Standard Temperature and Pressure

A reference point is a basis or standard for evaluation, comparison, or understanding of something, often serving as a benchmark or anchor in various fields such as physics, psychology, and economics. It is crucial for establishing context, measuring change, and making informed decisions by providing a stable framework against which other variables or phenomena can be assessed.

reference point

set of conditions

behavior of gases

other substances

temperatures

degrees Celsius

Kelvin is the base unit of temperature in the International System of Units (SI), defined by setting the Boltzmann constant to 1.380649×10^−23 J/K, which establishes an absolute thermodynamic temperature scale starting from absolute zero, the point at which all molecular motion ceases. It is crucial for scientific measurements because it provides a uniform and absolute scale that is not dependent on the properties of any specific substance.

Kelvin

Pressure is the force exerted per unit area on the surface of an object, which can arise from various sources such as gases, liquids, or solids. It plays a crucial role in numerous scientific and engineering applications, influencing phenomena ranging from weather patterns to the behavior of gases and liquids in different environments.

Pressure

The atmosphere is a layer of gases surrounding a planet, crucial for sustaining life by regulating temperature and protecting from harmful solar radiation. It also plays a vital role in weather patterns and climate systems, influencing both local and global environments.

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