Question

what is molar volume? how much volume would be occupied by 16.5 mol of an ideal gas at standatrd tempearture and pressure (STP, 273 K, 1 bar)?

Answer 1

the molar volume is the volume of 1 mole of ideal gas at STP. its value is:22.414 mol^-1.

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=8.314 J mol^-1K^-1

n=no. of moles=1

T= standard temperature =273K

p=standard pressure =1 atm =1.013×10^5Nm^-2

V=nRT/P

=1×8.314×273/1.013×10^5

=0.0224 M^3

=22.4litres

hence the molar volume of a gas at STP is 22.4 litres.


hope its helps