Unit kg-mol

The chain length can be expressed as degree of polymerisation P (number of monomeric units in the chain), or, in most cases, as molar mass (or molecular weight) in g/mol. Sometimes the better unit, kg/mol is used the difference is a factor of 1000. In this book the older unit, g/mol, will mostly be used. 

Figure 13.20 Cascade of electrolytic cells and exchange towers. E = electrolysis stage. -----hydrogen flow units, kg-mol/h.

Figure 13.37 Material flow sheet for dual-temperature ammonia-hydrogen exchange process. Flow units, kg-mol/h.

In most practical applications, the mol is too small and thus chemical engineers often adopt the unit kg-mol (also written kmol), which is 10 mol. To minimize ambiguity, often the mol will be written as g-mol. In the s system, the Ib-mol is the standard ... 

HETP = height equivalent to a theoretical plate, m, or ft HTU = height of a transfer unit, m or ft Lm = liquid rate, kg-mols/h, or lb mols/hr m = slope of the equilibrium line X = mol fraction of the more volatile component in the liquid phase... 

The repeat unit in the Phenoxy molecule is longer by two carbon atoms than that of PC. Otherwise the molecular structures of the two polymers are similar. Eq. (7.8) should, therefore, apply also to PC, at least approximately. 8C = 8.9 pm was measured for the crack opening displacement in a Makrolon sheet (Mn = 9.5 kg/mol) by Fraser and Ward [80], An estimate of the molecular mass between entanglements according to Eq. (7.8) yields Mc = 1.7 kg/mol. This result is not very different from the value of 2.5 kg/mol for IVIC in PC as given in Table 3.2. 

For applications where the solution temperature changes, chemists prefer to use the molality, units of mol/kg). Molality is defined to be the number of moles of solute divided by the mass of solvent in kilograms. Moles of solute solute... 

To model the amidation and cyclization reactions, an internal standard was weighed into the feed, and the feed placed on a balance for continuous weighing during the reaction. The HPLC system was calibrated using units of mol/kg, so that density effects could be neglected. A series of experiments... 

We equate the two expressions for root mean square speed, cancel the common factors, and solve for the temperature of Ne. Note that the units of molar masses do not have to be in kg/mol in this calculation they simply must be expressed in the same units. 

Table 15.1 Solubility as (S = 35) Stoichiometric Equilibrium Constants (-logKip) for a Function of Temperature and Pressure Where K p Calcite and Aragonite Has Units of (mol/kg) ...

The side groups and the repeating structure of the side groups change the chemical and physical properties of the polymer, and this defines the chemical and physical characteristics of the different polypeptide molecules. Not all natural macromolecules, however, are polymers. For example, insulin is a natural macromolecule with a molecular weight of 5733 kg/kg-mol. Insulin has long linear chains that are connected by 21 sulfur crosslinks. When it is decomposed 51 residual molecules result. Insulin is not a polymer because it does not have repeating units of monomers. 

Tables 6.3-6.5 contain the selected specific ion interaction coefficients used in this review, according to the specific ion interaction model described in section 6.1. Table 6.3 contains cation interaction coefficients with Cl , CIO4, and NOs Table 6.4 anion interaction coefficients with Li with Na or NH4, and with K. The coefficients have the units of kg mol and are valid for 298.15 K. The species are ordered by charge and appear, within each charge class, in standard order of arrangement [33].

Mole flow of N2 per unit area catalyst, kg mol/(hm ) Temperature of feed gas, K Temperature of reacting gas, K... 

Note 1 Molar mass is usually expressed in g mol or kg mol units. The g mol unit is recommended in polymer science, since then the numerical values of the molar mass and the relative molecular mass of a substance are equal. 

The fragmentation process depends on how much electrical energy (RF power) is supplied to maintain the plasma, how much monomer is introduced into the plasma, and where the monomer molecules interact with activated species of the plasma. Yasuda proposed a controlling parameter or W/FM value, where W, F, and M are RF power [J/s], the monomer flow rate [mol/s], and the molecular weight of the monomer [kg/mol], respectively [21]. The W/FM parameter is an apparent input energy per unit of monomer molecules [J/kg] therefore, the magnitude of the W/FM parameter is considered to be proportional to the concentration of activated species in the plasma. The polymer formation rate (polymer deposition rate) increases by increasing the W/FM parameter in the operational condition, whereby... 

What factor must be used to convert a VW value determined using a pure culture of a particular microbial species and given in mol substrate kg-1 protein - s 1 to a Vmax value in units of mol substrate L s What does that factor represent ... 

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