At Moderate Pressures (~ 200 Atm), the Measured Pressure Exerted

question 59

Multiple Choice

At moderate pressures (~ 200 atm) , the measured pressure exerted by CO₂ gas is less than that predicted by the ideal gas equation. This is mainly because

• A)such high pressures cannot be accurately measured.
• B)CO ₂ will condense to a liquid at 200 atm pressure.
• C)gas phase collisions prevent CO ₂ molecules from colliding with the walls of the container.
• D)of attractive intermolecular forces between CO ₂ molecules.
• E)the volume occupied by the CO ₂ molecules themselves becomes significant.

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