User:Milton Beychok/Sandbox: Difference between revisions

Revision as of 01:08, 8 September 2009

(GNU) Diagram: Wilfried Cordes
Heats of vaporization versus temperature.^[1]

Heat of vaporization, normal boiling point and critical
temperature and pressure of various liquids ^[2]^[3]
Name	Formula	H_v	T_n		T_c	P_c
Name	Formula	( J/mol )	( °C )	( K )	( K )	( atm )
Acetic acid	C₂H₄O₂	23,700	117.9	391.1	594.8	57.1
Acetone	C₃H₆O	29,100	56.2	329.4	508.7	47.0
Benzene	C₆H₆	30,720	80.0	353.2	562.1	48.6
Butane	C₄H₁₀	22,440	– 0.5	272.7	425.2	37.5
Carbon tetrachloride	CCl₄	29,820	76.6	349.8	556.3	45.0
Chloroform	CHCl₃	29,240	61.1	334.3	536.2	54.0
Cyclohexane	C₆H₁₂	29,970	80.7	353.9	553.6	40.0
Cyclopentane	C₅H₁₀	27,300	49.2	322.4	511.8	44.6
Decane	C₁₀H₂₂	38,750	174.1	447.3	617.6	20.8
Ethanol	C₂H₆O	38,560	78.2	351.4	516.2	63.0
Hexane	C₆H₁₄	28.850	68.7	341.9	507.4	29.9
Isobutane	C₄H₁₀	21,300	– 11.9	261.3	408.2	36.0
Methanol	CH₄O	35,210	64.7	337.9	513.2	78.5
Octane	C₈H₁₈	34,410	125.6	398.8	569.2	24.8
Water	H₂0	40,660	100	373.2	647.3	218.3
:(1)H_v is the heat of vaporization (2) T_n = normal boiling point (3) T_c = critical temperature (4) P_c = absolute critical pressure

↑ Dortmund Data Bank Online Search
↑ J.M. Smith, H.C. Van Ness and N.M. Abbot (2004). Introduction to Chemical Engineering Thermodynamics, 7th Edition. McGraw-Hill. ISBN 0-07-310445-0.
↑ Robert C. Weast (Editor) (1976). Perry's Chemical Engineers' Handbook, 56th Edition. CRC Press. ISBN 0-87819-455-X.

@@ Line 45: / Line 45: @@
 |- align="center"
 |[[Water]]||H<sub>2</sub>0||colspan=2|40,660||100||373.2||colspan=2|647.3||colspan=2|218.3
+|-
+|colspan=10|:(1)H<sub>v</sub> is the heat of vaporization<br />
+:(2) T<sub>n</sub> = normal boiling point<br />
+:(3) T<sub>c</sub> = critical temperature<br/>
+:(4) P<sub>c</sub> = absolute critical pressure
 |}