Combinations of the PC-SAFT molecular parameters, like m-σ3 or m-ε/(kT), are used as descriptors (di) in a QSPR method with a multilinear regression model (2)Mcalc=a0+∑i=1nai⋅di⋅ The ideal gas specific heat capacity (CpIG) can be correlated with the PC-SAFT molecular ...
n_1 moles of a monatomic gas and n_2 moles of a diatomic gas are mixed together in a container. Derive an expression for the molar specific heat at constant...
For the calculation of the specific heat capacity at constant volume, cv some relationships are available. An exact thermodynamic derivation leads to the equation: (5.9)Cp−Cv=α2VT/κ where V is the molar volume (mol m−3), α is the expansion coefficient (K−1), and K is the ...
Therefore, specific heat possesses infinite values. The specific heat of the gas is not constant if you do not supply a constant amount of heat. So, you must have specific heat at a constant volume or pressure. For an ideal gas,
the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule. Abbr.: mol. wt. [1875–80] Random House Kernerman Webster's College Dictionary, © 2010 K...
Molar heat capacity is defined as the amount of heat required to raise 1 mole of a substance by 1 Kelvin. Like specific heat, molar heat capacity is an intensive property, i.e., itdoesn’tvary with the amount of substance. Mathematically, it is the heat capacity of a substance divided ...
Molar heat of vaporization is a property that describes the amount of energy needed to convert one mole of a substance between its liquid and gas states. Specific heat capacity is a property of a substance that tells the amount of energy needed to raise one gram of a substance by one ...
NA is the molar rate of transfer per unit area of interface of component A, Dv is the vapour diffusion coefficient, CA is the concentration of A in moles per unit volume, and z is the distance in direction of diffusion. For an ideal gas, this gives: (11.147) where y is the mole fr...
if ψ is an integer, where fn(M) is the number distribution of molecular weight M. Thus, ψ = 1 for the number-average molar mass (Mn), ψ = 2 for the weight-average molar mass (Mw), and ψ = 3 for z-average molar mass (Mz). For example, Mn is measured by end-group analy...
In an aqueous solution, with an increase in the surfactant’s concentration, the number of surfactant particles in the boundary surface increases, and at a specific concentration—the critical micellar concentration (characteristic value for a given surfactant at a constant temperature)—the boundary ...