Volume of gaseous products

III. The volumes of gaseous reactants must always equal the volumes of gaseous products for any reaction. 

Cook (1958), 285-87 (Products of deton of TNT) Appendix II, pp 379-407 (Calcn of products of deton) 6) Baum, Stanyu-kovich Shekhter (1959), 13 (Volume of gaseous products of deton) 109-43 (Calcn... 

Table 5.18 Effect of the addition of aluminium on the heat of explosion and volume of gaseous products for TNT/Al. These values have been obtained experimentally...

In the second series of experiments (Table 4.2, experiments 3-6) on ethylbenzene dehydrogenation by molecular oxygen, styrene yields were much lower than in the first series. On the quartz reactor walls condensation product precipitation in amounts up to 1.7% was observed. Moreover, if molecular hydrogen was absent in the products of conjugated dehydrogenation, the total amount of hydrogen equals 78-82% of the whole volume of gaseous products (2.2% in total products). 

The initial step in the evaluation of the test results is determination of the total volume of the gaseous combustion products (by gasometer) and its reduction to the referent conditions, i.e., temperature of 298.15 K and pressure of 1 bar, not taking into account the formation of water. The calculation of the volume of gaseous products at referent conditions (Vo) is based on the equation of the state of ideal gas, assuming that the number of moles of the gaseous products at the moment of the very end of combustion equals those determined after the cooling process is finished. Thus, it is valid ... 

Observations of the reaction between nitrogen gas and hydrogen gas show us that 1 volume of nitrogen reacts with 3 volumes of hydrogen to make 2 volumes of gaseous product, as shown below ... 

This law shows that temperature is directly proportional to pressure and volume. In the case of an explosive, the higher the pressure generated, the more powerful is the explosive. The power of an explosive can be defined as VQ, where V is the volume of gaseous products and Q is tire heat evolved. Thus, the most powerful explosives (per gram) are those which create the largest number of moles (n) of gas at the highest temperatures. A common way to express this relationship is via a modification of the ideal-gas law ... 

The explosive power of a bomb depends fundamentally on the heat evolved (Q) and the volume of gaseous products produced (V) and is expressed as the product of these two quantities. The relative power of one explosive compared with another is obtained through the power index... 

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