Answer: 0.9 atm
Explanation:
The standard temperature and pressure (generally known as STP) is the freezing point of pure water at nominal conditions in the atmosphere (at sea level).
In this sense, the standard temperature is [tex]273 K[/tex] ([tex]0 \°C[/tex] or [tex]32\°F[/tex]) and the standard pressure is [tex]10^{5} Pa=1 bar[/tex] or [tex]0.98 atm \approx 1 atm[/tex].
