Question

0.5 mole of gas occupies a volume of ------ liters at Standard temp and pressure. (A) 22.4 Lit (B) 11.2 Lit (C) 44.8Lit

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Answer 1

Explanation:

Answer

22.4 Lit

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−1K−1

n = Number of moles = 1

T = Standard temperature = 273 K

P = Standard pressure = 1 atm =1.013×105Nm−2

∴V=nRT/P

=1×8.314×273/(1.013×105)

=0.0224m3

=22.4 litres

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

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Answer 2

Answer:

Option A

Explanation:

0.5 mole of molecules carries 22.4 l of volume