Answer :
The standard temperature is 273 K (0° Celsius or 32° Fahrenheit) and the standard pressure is 1 atmosphere. This is the freezing point of pure water at atmospheric pressure at sea level.
STP, 1 mole of gas occupies a volume of 22.4 L (molar volume). At standard temperature and pressure (STP), molar volume (Vm) is the volume occupied by one mole of a chemical element or compound. It can be calculated by dividing the molar mass (M) by the mass density (ρ). Gas volume is defined as the space occupied by gas particles at standard temperature and pressure conditions. Represented by a "V". The SI unit of volume is the liter, denoted L. One mole of gas has a volume of 24 m3 or 24000 cm3 at room temperature. This value is called the molar volume of the gas.
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