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Q12.2: NCERT Physics - Part 2 KINETIC THEORY 12.2 Solution: Molar volume is the volume occupied by 1 mol of any (ideal) gas …

Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP : 1 atmospheric pressure, 0 �C). Show that it is 22.4 litres.

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**Answer:** Molar volume = 22.4 L **Step-by-Step Explanation:** Using the ideal gas equation:
PV=nRTPV = nRT
For n=1n = 1 mole, P=1P = 1 atm =1.013×105= 1.013 \times 10^5 Pa, T=273.15T = 273.15 K, R=8.314R = 8.314 J mol__K__.
V=RTP=8.314×273.151.013×105=0.0224 m3=22.4 LV = \frac{RT}{P} = \frac{8.314 \times 273.15}{1.013 \times 10^5} = 0.0224 \text{ m}^3 = 22.4 \text{ L}
Hence, the molar volume of any ideal gas at STP is 22.4 litres [citation:9][citation:22].

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