Which statement explains why low temperature and high pressure are required to liquefy chlorine gas?

(1) Chlorine molecules have weak covalent bonds.

(2) Chlorine molecules have strong covalent bonds.

(3) Chlorine molecules have weak intermolecular forces of attraction.

(4) Chlorine molecules have strong intermolecular forces of attraction.

Question

Yasmine Frazier

Chemistry

28 January, 15:29

Which statement explains why low temperature and high pressure are required to liquefy chlorine gas?

(1) Chlorine molecules have weak covalent bonds.

(2) Chlorine molecules have strong covalent bonds.

(3) Chlorine molecules have weak intermolecular forces of attraction.

(4) Chlorine molecules have strong intermolecular forces of attraction.

+5

Answers (1)

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Jacqueline Krause · Answer 1

4 is correct. Since gases are made of rapidly moving molecules with a relatively high amount of kinetic energy, the molecules have a hard time coming together to form a liquid. You must lower their kinetic energy with a low temperature and force the molecules together with high pressure.