Water Data (comparative hydride data)

**Comparative data for water-related molecules**
Hydride	CH₄	NH₃	H₂O	HF	Ne
Molecular mass	16.04	17.03	18.01	20.01	20.18
Melting point, °C	-182.5	-77.7	0.0	-83.0	-228.8
Boiling point, °C	-161.6	-33.4	+100.0	+19.5	-246.1
Critical point, °C	-82.7	+132.2	+373.9	+188	-228.7
Critical point, MPa	4.6	11.3	22.1	64.9	26.9
Critical point, kg ˣ m⁻³	162.7	225	322	290	482
Triple point, °C	-182.5	-77.8	+0.01	-83.6	-248.6
Triple point, kPa	11.7	6.06	0.611	0.200	43.3
Hydride	SiH₄	PH₃	H₂S	HCl	Ar
Molecular mass	32.12	34.00	34.08	36.46	39.95
Melting point, °C	-185.0	-132.8	-85.5	-114.2	-189.6
Boiling point, °C	-111.0	-87.7	-60	-85	-185.8
Critical point, °C	-3.5	+51.6	+100.0	+1.0	-122.3
Hydride	GeH₄	AsH₃	H₂Se	HBr	Kr
Molecular mass	76.64	77.95	80.98	80.91	83.80
Melting point, °C	-164.8	-117	-65.7	-86.9	-157.4
Boiling point, °C	-88.1	-62.5	-41	-66.72	-151.7
Critical point, °C	+34.8	+99.9	+138	+90	-63.8
Hydride	SnH₄	SbH₃	H₂Te	HI	Xe
Molecular mass	122.74	124.78	129.62	127.91	131.29
Melting point, °C	-146	-88	-51	-50.8	-111.5
Boiling point, °C	-52	-17	-2	-35.4	-106.6
Critical point, °C	decomposes	decomposes	+200	+151	16.6
Hydride	PbH₄	BiH₃	H₂Po	HAt	Rn
Molecular mass	211.24	212.0	211	211	222
Melting point, °C			-36		-71
Boiling point, °C	-13	16.8	+37		-61.7
Critical point, °C	decomposes	decomposes			105