The Standard Temperature and Pressure is 1 atm, 273 K
Explanation:
STP is Standard Temperature and Pressure
Standard Temperature is
0° C in Celsius or 273 K in Kelvin
Standard Pressure is
1 Atmosphere (atm)
760 Torricelli's (torr)
760 Millimeters of Mercury (mmHg)
101.325 KiloPascals (kPa)