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How much volume does one mole of gas have at STP conditions?

Option: 1

22.4 litres


Option: 2

24 litres


Option: 3

Depends on the molecular weight of the gas


Option: 4

Depends on some other conditions


Answers (1)

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At STP, a Mole of gas has a volume of 22.4 liters at a temperature of 0°C and a pressure of one atmosphere, or 76 mm of Mercury. 

Additionally, keep in mind that one mole of a gas is equal to the gas's weight divided by its molecular weight.

One mole of any gas takes up 22.4 liters of space at STP (standard temperature and pressure) conditions, which are established as 273.15 K (0°C) and 1 atmosphere (atm) of pressure. It is a constant that applies to all ideal gases and is known as the molar volume of a gas at STP.

The ideal gas law says that   

Pv = nRT

where P is pressure

V is volume

n is the number of moles of gasa

R is gas constant ,and

T is temperature

\mathrm{P}=1 \mathrm{~atm}, \mathrm{~T}=273.15 \mathrm{~K}\: and \:\mathrm{R}\: are \:constant \:values\: at\: \mathrm{STP} \:conditions.

V = \frac{nRT}{P} = (1~\mathrm{mol})\left(\frac{0.08206~\mathrm{Latm}}{\mathrm{molK}}\right)273.15\mathrm{K}

= \frac{(273.15~\mathrm{K})}{(1~\mathrm{atm})}

\mathrm{V=22.4L}

is the result of solving for V

Posted by

manish painkra

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