Critical Temperature and Boiling Point of Normal Paraffins

1953 ◽  
Vol 21 (12) ◽  
pp. 2235-2235 ◽  
Author(s):  
Yatendra Pal Varshni
Keyword(s):  
Critical Temperature ◽  
Boiling Point

Critical Temperature and Boiling Point of Normal Paraffins

1954 ◽  
Vol 22 (1) ◽  
pp. 156-156 ◽  
Author(s):  
Shashanka Shekhar Mitra
Keyword(s):  
Critical Temperature ◽  
Boiling Point

THE VAPOR PRESSURE OF VINYL ACETATE

1933 ◽  
Vol 9 (5) ◽  
pp. 419-423 ◽  
Author(s):  
J. Marsden ◽  
A. C. Cuthbertson
Keyword(s):  
Critical Temperature ◽  
Vapor Pressure ◽  
Vinyl Acetate ◽  
Boiling Point ◽  
Normal Boiling Point ◽  
Temperature Range ◽  
Heat Of Evaporation

This paper presents the results of the measurement of the vapor pressure of vinyl acetate, over the temperature range from 0 °C. to the normal boiling point. The determinations were carried out on vacuum distilled samples with an isoteniscope, differing slightly in detail from that used by Smith and Menzies(7).The normal boiling point is 72.5 °C. The molecular heat of evaporation has been found to be 8211 calories. The equation which represents the results is[Formula: see text]Trouton's constant and the critical temperature have been found to be 23.8 and 228.3 °C.

scholarly journals A new formation of diamond

1905 ◽  
Vol 76 (512) ◽  
pp. 458-461 ◽  
Keyword(s):  
Critical Temperature ◽  
Melting Point ◽  
Critical Point ◽  
Boiling Point ◽  
Critical Pressure ◽  
Carbonic Acid ◽  
Melting Points ◽  
Boiling Points ◽  
James Dewar ◽  
New Formation

On the average the critical point of a substance is 1·5 times its absolute boiling-point. Therefore the critical point of carbon should be about 5800° Ab. But the absolute critical temperature divided by the critical pressure is for all the elements so far examined never less than 2·5; this being about the value Sir James Dewar finds for hydrogen. So that, accepting this, we get the maximum critical pressure as follows, viz., 2320 atmospheres:— 5800° Ab./CrP = 2·5, or CrP = 5800° Ab./2·5, or 2320 atmospheres. Carbon and arsenic are the only two elements that have melting-point above the boiling-point; and among compounds carbonic acid and fluoride of silicium are the only other bodies with similar properties. Now the melting-point of arsenic is about 1·2 times its absolute boiling-point. With carbonic acid and fluoride of silicium the melting-points are about 1·1 times their boiling-points. Applying these ratios to carbon we find that its melting-point would be about 4400°.

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