At what temperature is a gas considered to be at STP?

Question

Quizplus · Accepted Answer

STP stands for Standard Temperature and Pressure, which is defined as a temperature of 0°C (273.15 K) and a pressure of 1 atm (or 101.325 kPa). Therefore, the gas is considered to be at STP at 0°C. Choice A (25°C) and E (100°C) are not at STP, while D (0 K) is impossible as it represents absolute zero, the lowest possible temperature. Choice B (298 K) is close to room temperature but is not specifically at STP.

At What Temperature Is a Gas Considered to Be at STP