Tetrode

On applying Stirling s approximation, replacing V/N by kT/P, and using Eq. XVII-20 and setting P = 1 atm, the final result, known as the Sackur-Tetrode equation, is... 

The standard entropies of monatomic gases are largely determined by the translational partition function, and since dris involves the logarithm of the molecular weight of the gas, it is not surprising that the entropy, which is related to tire translational partition function by the Sackur-Tetrode equation,... 

The Sackur-Tetrode equation was derived for the molar entropy for a monatomic gas to be... 

The standard (298.15 K and 10" kPa pressure) entropies of monatomic ions in the gas phase may be estimated by using the Sackur-Tetrode equation ... 

A The standard entropy of a proton gas is given by the Sackin Tetrode equation ... 

The detection of the fluorescence is accomplished by a 1P21 photomultiplier tube pulsed to 1.5 kV for 2.5 /nsec. Small dynode resistors (50 Q) are employed to minimize the RC time of the tube. This results in a nearly rectangular gating. A 3E29-beam-power tetrode with both sections in parallel is operated as a hard-tube amplifier to provide the 1.5-kV pulse for... 

Obviously, such interpetation led to disregard advanced solutions as nonphysical. For instance, Ritz [30] and Tetrode [31] considered that the mathematical existence of advanced solutions was a major weakness of Maxwell s equations. An attempt to provide a physical basis for advanced potentials is due to Lewis, who proposed focusing on the process of propagation from an emitter to an absorber far away from the emitter [32]. This concept also appears in the work of Wheeler and Feynman [33]. However, such model constitutes another form of causality violation. Lewis [32, p. 25] himself stated I shall not attempt to conceal the conflict between these views and common sense. ... 

Term (2) calculated by the high-accuracy multistep CBS-APNO method (Section 5.5.2.2b) was 341.2 kcal mol-1 or 1426 kJ mol-1. The Sackur-Tetrode equation for the gas-phase entropy of the proton was mentioned in this regard, but in fact the algorithm automatically handles this. 

Equation 2.8-2 is referred to as the Sackur-Tetrode equation. Since we have expressions for these three properties, we can calculate the properties U, H, A, and CP ... 

Use the Sackur-Tetrode equation [Eq. (76)] to calculate the standard molar entropy of neon considered an ideal gas at 298 K. 

We will illustrate the method by outlining the calculation of the (differential) entropy of adsorption. For S, we use the Sackur-Tetrode expression, Eq. (76) of Chapter 5, with a term added for the internal degrees of freedom ... 

The first term, called the (differential) configurational entropy, results from the different possible ways the adsorbed molecules can occupy the surface sites. The last two terms, which are negative, are the Sackur-Tetrode entropy due to the lost translational degrees of freedom of the gaseous molecules. 

The self diffusion of particles and the entropy of the system are both a result of random particle motions. With the Sackur-Tetrode equation the molar entropy, S of the above system can be calculated at temperature Tand pressure p ... 

Upper values data from most extensive calculations lower values best experimental data available, thermodynamic functions calculated from partition functions by means of the Sackur-Tetrode equation... 

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