منابع مشابه
Pressure Dependence of Liquid Vapor Pressure: An Improved Gibbs Prediction
A new model for the vapor phase of a pressurized liquid called "the cluster model: which is originally introduced in this work, along with an accurate equation of state for the liquid phase called the LIR, is used to derive an accurate equation for the vapor pressure of liquid as a function of external pressure. The chemical Potential of both phase have been found to be in good agreement wi...
متن کاملA New Vapor Pressure Equation
The Wagner equation for prediction of vapor pressure has been modified in order to improve it accuracy. On the basis of this modifications, development of a new equation for prediction of vapor pressure is outlined. Examples of the use of the equation for obtaining vapor pressure for a total of 94 pure substance are given. The proposed equation combines simplicity and accuracy and performs as w...
متن کاملIn-cloud and Below-cloud Scavenging of Nitric Acid Vapor
Scavenging coefficients, A, for the removal of HNO?; vapor from the atmosphere by both cloud and rain drops have been calculated for assumed models of drop-size distribution. For cumulus clouds a value of 0.2 s1 is estimated for A. Evaluation of rainfall washout coefficients gives values of A ranging from 1.3 x 10m5 to 1.5 x 10. ‘s-t, depending upon the rainfall rate, upon the drop-size distrib...
متن کاملTwo-step vapor-crystal nucleation close below triple point.
We present the results of Monte Carlo simulations of crystal nucleation from the vapor phase. We studied the Lennard-Jones system at conditions close to, but below, the triple point. This system is expected to show surface melting. The nucleation pathway that we observe consists of two distinct steps. In the first step, a liquid droplet nucleates from the vapor. Its nucleation rate depends stro...
متن کاملVapor pressure determination by thermogravimetry
A method for measuring the vapor pressures of a wide range of materials using a conventional thermobalance and standard sample holders is described. The equipment is calibrated using pure reference materials of known vapor pressure and exploiting the relationship between volatilization rate and vapor pressure based on the Langmuir equation for free evaporation. Enthalpies of vaporization and su...
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ژورنال
عنوان ژورنال: Journal of Nuclear Science and Technology
سال: 1978
ISSN: 0022-3131,1881-1248
DOI: 10.1080/18811248.1978.9735585