For a certain real gas at 320 K

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

Problem

For a certain real gas at 320 K, the compressibility factor

Z

is observed to be less than 1 at 10 atm and greater than 1 at 200 atm. At which pressure is

Z

most likely to be closest to 1? (a)

5\ \text{atm}

(b)

100\ \text{atm}

(c)

50\ \text{atm}

(d)

500\ \text{atm}