Question

What how do you find a pressure at STP and SATP?

Answer 1

pressure at STP is 1atm

Answer 2

STP (2 conditions possible) :-

pressure at stp is 1bar and temperature is 0°C

then, molar volume is 22.71 L per mol

OR

pressure can be 1 atm and temperature is 0°C

then, molar volume is 22.4 L per mol

SATP :-

pressure is 1bar

temperature is 25°C i.e. 298.15K

hence, molar volume = 24.789 L per mol

Hope it helps :)

cheers !