Oxygen latent heat

Adsorptions are exothermic, releasing more than the latent heat of the adsorbate gas, which quasi liquefies and solidifies besides being attracted. The first traces of adsorbed oxygen release even more heat than the combustion of carbon to carbon dioxide but after the first adsorption sites have been occupied, the adsorptive heat — based on unit mass of adsorbed oxygen — gradually drops to the level of condensation heat, far below the heat of combustion. 

Sea Salts - Most of the Na and Cl in both Greenland and Antarctica is of marine origin [1,13,21]. Near the ocean, sea salts may also account for most of the Mg, K, Ca, and S042-. Concentrations of Na and Cl display a maximum in winter Greenland precipitation which is coincident with the minimum oxygen isotope delta values [1,13,18]. The seasonal maximum in sea salt concentrations may be due to increased storminess, over the ocean in winter or to an increased poleward latent heat flux during the polar night [13]. 

The heating value, or calorific value, expressed as kj/kg (Btu/lb), is the heat produced at constant volume bv the complete combustion of a unit quantity of coal in an oxygen-bomt calorimeter under specified conditions (ASTM D 5865-04, ASTM International, op.cit.). The result includes the latent heat of vaporization of the water in the combustion products and is called the gross heating or high heating value (HHV) Qh- And Qh in Btu/lb (x 2.326 = kJ/kjy on a dry basis can be approximated by a formula developed by the Institute of Gas Technology ... 

Ammonium dinitramide (ADN) is a crystalline oxidizer with the formula NH4N(N02)2, that is, it is composed ofionicaUy bonded ammonium cations, NH4, and dinitramide anions, N(N02)2- Though ADN is crystalline and has a high oxygen content, similar to AP and KP, it has no halogen or metal atoms within its structure. ADN is used as an oxidizer in smokeless composite propellants, similar to AN and HNF. It melts at about 364 K, accompanied by the latent heat of fusion. 

As would be expected from its increasing dissociation at higher temperatures, sulphur trioxide is formed from sulphur dioxide and oxygen with evolution of heat, the amount being 32-1 Calories per gram-moleeule formed, whilst the heat of formation of the liquid trioxide from its elements is 103-2 Calories per gram-molecule.1 The latent heat of vaporisation per gram-molecule of liquid sulphur trioxide is 10-3 Calories.2... 

The heat of evaporation of liquid air was measured by T. Estreicher,13 and U. Behn. According to J. S. Shearer, the heat of vaporization depends on the proportion of oxygen and G. Witt represented the latent heat of vaporization of liquid air by A=49-59+0-0143p cals., where p represents the percentage of oxygen in the mixture the latent heat of vaporization of nitrogen is 49-59 cals., and of oxygen, 51-92. 

What thickness of lagging would be required to reduce the losses to one tenth Atmospheric temperature = 288 K. Boiling point of oxygen = 90 K. Density of oxygen = 1140 kg/m3. Latent heat of vaporisation of oxygen = 214 kJ/kg. Thermal conductivity of lagging = 0.07 W/m K. 

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