Standard temperature and pressure (STP), in the context of gases, refers to _.
A) 298 K and 1 atm
B) 273 K and 1 atm
C) 273 K and 1 torr
D) 298 K and 1 torr
E) 273 K and 1 pascal

Question

Quizplus · Accepted Answer

Standard temperature and pressure (STP) refers to a temperature of 273 K (0 °C or 32 °F) and a pressure of 1 atm (101.325 kPa or 760 mmHg or 760 torr). Therefore, choice B is the correct answer, as it matches both the temperature and pressure conditions that define STP.

Standard Temperature and Pressure (STP), in the Context of Gases