STP condition represents

STP stands for standard temperature and pressure.

STP condition means 0°C temperature, 1 atm pressure (Or) 273 K temperature, 760 mm of Hg pressure (Or) 0°C temperature, 760 mm of Hg pressure. Since${\mathrm{T}}_{\mathrm{k}}=°\mathrm{C}+273.15;$1 atm = 760 mm of Hg