Condensation.
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No: hydrogen sulfide is a gas at standard room temperature and pressure
Acetylene is a gas at standard temperature and pressure.
At STP (standard temperature and pressure) it is a gas. It can be made to be a liquid or gas by adjusting the temperature and pressure around it, but at room temperature and one atmosphere of pressure (sea level) it is a gas.
gas
Helium at standard temperature and pressure - is a gas.
At standard pressure and temperature it is.
Standard temperature and pressure (STP) is a temperature 0ºC (32ºF) with the air pressure the same as at sea level.
NO
The pressure of gas has nothing to with ATP. However, the pressure of gas at STP, or Standard Temperature Pressure is 0 degrees Celsius and pressure is 1 ATM.
At standard temperature and pressure, chlorine will be a gas.
STP = Standard Temperature and Pressure After the IUPAC rules the standard temperature is 0 0C and the standard pressure is 100 kPa (0,986 atm). The molar volume of an ideal gas at STP is 22,710 980(38) L.
Krypton is a gas at standard room temperature and pressure.