Shahin Khosharay

12 Questions 29 Answers 0 Followers

Questions related from Shahin Khosharay

How is the interfacial tension of liquid-liquid system measured by pendant drop method?

It is known that the surface/interfacial tension tension can be measured by pendant drop method and the following equation: IFT=deltaro*g*de^2/H. 1/H is function of ds/de (1/H=f(ds/de)). I used...

02 February 2018 5,892 10 View

Is ionization of sulfur dioxide and hydrogen cyanide in water significant?

It is known that the solubility of sulfur dioxide and hydrogen cyanide in water is high (higher than H2S). Is ionization of sulfur dioxide and hydrogen cyanide in water significant?

04 April 2017 1,069 6 View

Why do the strange behaviour exist at the interface of tetrahydrofuran/2-propanol mixture?

I have modeled the surface tension of tetrahydrofuran (THF)/2-propanol mixture at T=288.15 K (xTHF=0.55) by using gradient theory. I take tetrahydrofuran (THF) as a reference fluid. The density...

09 September 2016 5,074 1 View

Does any equation exist for describing the fugacity coefficient of surface phase at high pressures?

I search for equation for describing the fugacity coefficient of surface phase or interface because I believe that different equation is needed for surface phase or interface. I search for the...

03 March 2016 9,945 5 View

Why does the interfacial tension of systems containing water/immiscible liquid (for example water/octane) increase by increasing the pressure?

The interfacial tension usually decreases by increasing pressure, but for water/immiscible liquid interfacial tension increases by increasing pressure.

03 March 2015 4,491 3 View

Why does the solubility of liquid octane in water decrease by increasing the pressure of system at constant temperature?

The solubility of liquid octane in water decreases by increasing the pressure of system at constant temperature although it is expected that solubility of liquid octane in water increases by...

03 March 2015 3,666 10 View

Can you name a book in which the thermodynamic of interface a good introduction into the thermodynamics of interfaces exists?

I search for a book in which the thermodynamics of interfaces is well explained.

03 March 2015 5,805 14 View

Which one of the SAFT EOSs is good for modeling both vapor and liquid phases?

I do calculations with sPC-SAFT EOS for CO2/H2O system. It performed good for liquid but the results of vapor phase were not good.

12 December 2014 7,993 6 View

Does any equation of state or phase equilibrium calculation exist which is suitable for liquid-liquid phase equilibrium?

I used CPA EOS for this purpose but it does not support the calculations for LLE. I search for a suitable calculations or EOS.

01 January 1970 8,151 4 View

Can Laaksonen and Kulmala model (L-K model) be extended to surface tension of ternary liquid mixtures?

The Laaksonen and Kulmala model (L-K model) relates the surface tension of binary liquid mixtures to the interfacial volume and mole fraction. Can this model extended to ternary or multi-component...

01 January 1970 5,996 3 View

Do we have any criteria whose value shows how much a liquid solution and its interface deviate from the ideal state?

In thermodynamics, it is known that residual properties show how much a mixture deviates from the ideal state. Do we have other criteria for this? Do we have any criteria by which we can recognize...

01 January 1970 6,787 2 View

Does any model exist which can support the viscosity and thermal conductivity of fluids up to very high pressures?

It is known that many viscosity and thermal conductivity models are only applicable for atmospheric and saturation conditions. On the other hand, very high pressures (higher than 500 bar) is a...

01 January 1970 8,688 3 View