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molar volume of ideal gas (273.15 K, 100 kPa)  Value  22.710 953 x 10-3 m3 mol-1  Standard uncertainty   0.000 021 x 10-3 m3 mol-1   Relative standard uncertainty   9.1 x 10-7  Concise form  22.710 953(21) x 10-3 m3 mol-1       Click here for correlation coefficient of this constant with other constants Source: 2010 CODATA      recommended values  Definition of uncertainty       Correlation coefficient with any other constant