Carbon dioxide is sealed in a rigid container at and

CHEMISTRY · Single correct · AP · Chemistry · Properties of Substances and Mixtures · Properties of Substances and Mixtures

Problem

Carbon dioxide is sealed in a rigid

1.0\,\mathrm{L}

container at

40^\circ\mathrm{C}

and

80\,\mathrm{atm}

. On the particulate scale, the average distance between molecules is only slightly larger than their diameters, and the molecules move freely throughout the entire volume of the vessel. Which phase classification most accurately describes the sample under these conditions? (a) Liquid

\mathrm{CO_2}

(b) A supercritical fluid of

\mathrm{CO_2}

\mathrm{CO_2}

(dry ice) (d) Gaseous

\mathrm{CO_2}

under ordinary conditions

Related theory

Gaseous State
States of Matter

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