What Is the Mass Density of Argon Gas at Pressure

question 18

Multiple Choice

What is the mass density of argon gas at pressure 1.00 × 10⁵ N/m² and at temperature 300 K? The mean atomic mass of argon is 39.948 g/mol and the ideal gas constant is R = 8.314 J/mol•K = 0.0821 L ∙ atm/mol ∙ K.

• A) 1.40 kg/m³
• B) 1.00 kg/m³
• C) 1.20 kg/m³
• D) 1.60 kg/m³
• E) 1.80 kg/m³

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