Question

Categorize each option as a solid, liquid, or gas: Ne at 28 K, H2O at 390 K, Ne at 40 K, O2 at 150 K, H2O at 120 K, Ar at 60K, Ar at 32 K, O2 at 60K

Answer 1

Ne at 28 K, m.p. is 24.55 Kelvin thus it is liquid.

H2O at 390 K, b.p of water is 373 K thus it is gas

Ne at 40 K, b.p is 27.1 K thus it is gas

O2 at 150 K b.p is 90.188 K thus it is gas

H2O at 120 K, freezing point is 0 or 273 K thus it is solid.

Ar at 60K, m.p. is 83.95 K thus it is solid.

Ar at 32 K, m.p. is 83.95 K thus it is solid.

O2 at 60K m.p. is 54.8 K thus it is liquid

Argon	39.948	18	87.45 Kelvin	83.95 Kelvin
Oxygen	15.9994	8	90.188 Kelvin	54.8 Kelvin
Neon	20.1797	10	27.1 Kelvin	24.55 Kelvin