Interestingly, white phosphorus, the most common allotrope of phosphorus, is defined as the standard state despite the fact that it is only metastable. For all the other solid elements, the "standard state" is defined as the most stable allotrope at 100 kPa.
Red, violet, and black phosphorous are more stable, but far less common since they require special conditions to be produced and even being more stable are still very reactive. Note that red phosphorous might actually be considered just an intermediate phase between white and violet phosphorous rather than an allotrope, and consequently most of its properties vary considerably.
White phosphorus is considered the thermodynamic standard state of phosphorus. It is the most stable and common form of phosphorus at room temperature and pressure.
The chemical symbol (not formula) of phosphorus is P.
The standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials.
C4H10(g) is about -126 kJ/mol C4H10(l) is about -147 kJ/mol
The standard SI unit for distance is the meter. If you add a standard prefix, like kilo, milli, etc., it can still be considered an SI unit.The standard SI unit for distance is the meter. If you add a standard prefix, like kilo, milli, etc., it can still be considered an SI unit.The standard SI unit for distance is the meter. If you add a standard prefix, like kilo, milli, etc., it can still be considered an SI unit.The standard SI unit for distance is the meter. If you add a standard prefix, like kilo, milli, etc., it can still be considered an SI unit.
Clarity
Phosphorus standard is also known as black phosphorus. It has relatively few uses and is pretty cheap.
Standard hydrogen electrode forms the basis of the thermodynamic scale of oxidation reduction potentials.
Standard electrode potential is a redox electrode. This is the forms the basis of the thermodynamic scale.
Phosphorus forms individual P4 molecules. This is the standard form for white phosphorus.
The chemical symbol (not formula) of phosphorus is P.
Solid.There are two allotopes of Phosphorus; Red Phosphorous and White Phosphorus, both are solids at room temperature under standard pressure.
The standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation-reduction potentials.
C4H10(g) is about -126 kJ/mol C4H10(l) is about -147 kJ/mol
Properties that are considered to be standard.
is a standard modem considered to be a computer hardware
Clarity
Phosphorus can exist in any of these three forms, but is a waxy solid at standard conditions.Some Additional Information:White phosphorus is solid at temperatures below 44.2° C,gas at temperatures above 280.5° C, and liquid in between.