Question

STP is

A. 0oC and 1 atm
B. 0oC and 1 mmHg
C. 273oC and 760 mmHg
D. racer's edge

Answer 1

None of the above

Answer 2

It's A.

"Standard temperature is equal to 0 °C, which is 273.15 K. Standard Pressure is 1 Atm, 101.3kPa or 760 mmHg or torr. STP is often used for measuring gas density and volume. At STP 1 mole of any gas occupies 22.4L."

http://www.kentchemistry.com/links/GasLaws/STP.htm

C would be right if 273 was in kelvin units.