Calculate the number of moles present in 1 litre of water at STP. can find the ans using no. of moles=given volume/22.4L
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Answer ——- The ideal gas equation relating pressure (P), volume (V), and absolute temperature (T) is given as:
PV = nRT
Where,
R is the universal gas constant =8.314Jmol
−1
K
−1
n = Number of moles = 1
T = Standard temperature = 273 K
P = Standard pressure = 1 atm =1.013×10
5
Nm
−2
∴V=nRT/P
=1×8.314×273/(1.013×10
5
)
=0.0224m
3
=22.4 litres
Hence, the molar volume of a gas at STP is 22.4 litres.
PV = nRT
Where,
R is the universal gas constant =8.314Jmol
−1
K
−1
n = Number of moles = 1
T = Standard temperature = 273 K
P = Standard pressure = 1 atm =1.013×10
5
Nm
−2
∴V=nRT/P
=1×8.314×273/(1.013×10
5
)
=0.0224m
3
=22.4 litres
Hence, the molar volume of a gas at STP is 22.4 litres.
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