STP means Standard Temperature and Pressure
Sit down pls
In chemistry, standard (conditions of) temperature and pressure, meaning an environment at 0oC and 100 kPa.
STP is the same for all gasses an gaseous mixtures: 0 degrees Celsius at a prssure of 1 atm.
STP stand for standard temperature and pressure. The values of STP are 22.4 liters, 1mole, 1.00 atmospheres, and 273 kelvin. Under these conditions, all gases behave ideally or the same.