what is the temperature at STP?

Answer 1

0 degrees celcius

Answer 2

STP = Standard temperature and pressure...
In chemistry and other sciences, STP or standard temperature and pressure is a standard set of conditions for experimental measurements, to enable comparisons to be made between sets of data. Internationally, the current STP defined by the IUPAC (International Union of Pure and Applied Chemistry) is an absolute pressure of 100.00 kPa (1 bar) and a temperature of 273.15 K (0 °C). Other organizations have established a variety of alternative definitions for the standard reference conditions of temperature and pressure, such as the SATP amongst others.
In industry and commerce, it is necessary to define the standard reference conditions of temperature and pressure when expressing a gas volume or a volumetric flow rate because the volume of a gas varies with the temperature and pressure of the gas. The available data on the various definitions of standard reference conditions clearly indicates that the IUPAC's STP is not a universally accepted definition of the standard conditions of temperature and pressure. For that reason, simply stating that a gas flow rate is 10,000 m³/h (i.e. cubic meters per hour) at "standard conditions" or at "STP" has no meaning unless the reference conditions that were applied are clearly stated.

In aeronautics and fluid dynamics the term "International Standard Atmosphere" is often used to denote the variation of the principal thermodynamic variables (pressure, temperature, density, etc.) of the atmosphere with altitude at mid latitudes.


The International Standard Atmosphere (ISA) is a model of the standard variation of pressure, temperature, density, and viscosity with altitude in the Earth's atmosphere. It is based on average conditions at mid latitudes, as determined by the International Civil Aviation Organization (ICAO). The atmosphere is divided into layers with assumed temperature distributions, and the other values are computed from basic physical constants and relationships.

Various tabulations of the 1976 standard may be found on the web, e.g. at, or, of an earlier but similar standard, in publications such as Appendix 1 of Batchelor. The latter tabulation gives at sea level a pressure of 1.013 bar and a temperature of 15 C, and an initial lapse rate of 6.5 C/km. Above 12km the tabulated temperature is essentially constant. The tabulation continues to 18km where the pressure has fallen to 0.075 bar and the temperature to -56.5 C.

Answer 3

the temperature at stp is 0 degree celsius according to the centigrade scale and 273 kelvin according to the kelvin scale

Answer 4

273 k

Answer 5

-273 K

Answer 6

0 degrees Celsius and it is 20 degrees Celsius for NTP.

Answer 7

273.15k or 0degree celsius