Temperature of Standard Conditions

[Brian Acevedo 2E]

While studying for the final exam, I realized there was no consistent definition of what the temperature should be associated with "standard conditions". Sometimes standard conditions' temperature is defined as the freezing point of water (273 K) and sometimes standard conditions is used to refer to a system at room temperature (298 K). Is there any way to discern between the two possible values of T?

[Valerie Tran 2B]

I saw this on a different chem community post but my understanding is "standard conditions" uses 298K (gases, liquids, and solids). 273K is for STP which is a subset of standard conditions and specifically refers to ideal gases.

[Joyce Pang 2H]

usually, standard 'state' conditions would probably mean 25 celcius, or 298K. you'd probably encounter that most when doing thermodynamic problems. STP on the other hand, would refer to 273K, and is usually used when dealing with ideal gas stuff.

[Aimee Alvarado 3J]

I agree! Usually, standard conditions will either be 25 C or 298 K. However, I believe it will be explicitly mentioned in exams what the temperature will be so there's less confusion about it.

[Gicelle Rubin 1E]

I saw this on a different chem community post but my understanding is "standard conditions" uses 298K (gases, liquids, and solids). 273K is for STP which is a subset of standard conditions and specifically refers to ideal gases.

Thank you for clarifying! :D

[Jeremy Wei 2C]

Yes for standard conditions, temperature would be 25C or 298 K.