【Alevel化学AS】10-1 有机化学入门 Introduction to organic chemistry 22:58 【Alevel化学AS】10-2 有机化学式 Formulae for organic compounds 21:47 【Alevel化学AS】10-3 有机命名 Naming of organic compounds 53:10 【Alevel化学AS】10-4 同分异构 Isomerism 1:13:48 【Alevel化学AS】10-5 有机反应...
An absolute value for enthalpy cannot be computed, but the change in enthalpy can with the following formula: \Delta H = \Delta U + \Delta (PV) If the enthalpies of the reactants and products were given, then the enthalpy can be computed by finding the difference between the product's...
It is a thermodynamic unit of measurement useful for calculating the amount of energy per mole either released or produced in a reaction. Since enthalpy is derived from pressure, volume, and internal energy, all of which are state functions, enthalpy is also a state function. Delta H, or...
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It has been found that the expression See PDF for Equation represents very closely the relation between the volume of the solute and the viscosity of the solution. The formula has been applied to a number of experimental results and found to hold very well for as high concentrations as 50 pe...
Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and ...
Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and ...
A series of polynitroprismanes, C6H6n (NO2) n (n=1–6) intended for use as high energy density compounds (HEDCs) were designed computationally. Their electronic structures, heats of formation, interactions between nitro groups, specific enthalpies of combustion, bond dissociation energies, and ...
For both of these molecules the cis and gauche conformers have been identified in the fluid phases but only the conformer with the methyl group eclipsing the double bond remains in the solid. From these data, the enthalpy difference for dimethyl vinyl chlorosilane has been determined to be 41 ...