Chemical Equilibrium

We use the SRK equation of state to compute the correction factor due to gas-phase nonideality as a result of the high pressure applied in the ammonia synthesis. We also compute the extent of reaction. Plots of these two quantities versus pressure for temperature equal to 800K are presented. The...

A pH Calculator, a Virtual Titrator, a Real Titration Data Analyzer, a Distribution Diagram Generator - that's CurTiPot, the all-in-one freeware to learn, teach and work with chemical equilibrium of acids, bases, salts and buffers at home, classroom, interactive "dry lab", routine or research...

Rocket Propulsion Analysis (RPA) is a multi-platform rocket engine analysis tool for rocketry professionals, scientists, students and amateurs. For many years rocketry scientists, students and amateurs were using command-line MS-DOS or UNIX programs to calculate the performance of the rocket...


Platforms: Windows

Rocket Propulsion Analysis (RPA) is a multi-platform rocket engine analysis tool for rocketry professionals, scientists, students and amateurs. For many years rocketry scientists, students and amateurs were using command-line MS-DOS or UNIX programs to calculate the performance of the rocket...


Platforms: Windows

The program computes the tie lines, the operating and mixing points and the number of equilibrium stages using the Hunter and Nash graphical method of a liquid-liquid extraction problem. One feed of acetic acid (35 wt %) in water which flow rate = 1000 kg/hr is extracted using a solvent...


Platforms: Matlab

In the program, we obtain equilibrium constants, compressibility factors, molar volumes and densities using the Soave-Redlich-Kwong equation of state. We find the same results as those given by Henley and Seader in Equilibrium-Stage Separation Operations in Chemical Engineering, Wiley, 1981...


Platforms: Matlab

Chemical Equation Expert is an integrated tool for chemistry professionals and students. You'll find complicated work such as balancing chemical equations and related calculations so easy and even enjoyable! Key Feafures - 1. An intelligent balancer Chemical Equation Expert balances chemical...


Platforms: Windows

Uses Simulink to compute Vapor-Liquid Equilibrium diagrams for ethanol-water binary mixture. To compute activity coefficients, program uses Van-Laar Model. This mixture presents a positive azeotrope.


Platforms: Matlab

The program computes the liquid-liquid equilibrium diagrams for a type II ternary systems based on the NRTL model. The ternary mixture: hexane-heptane-methanol is an example of type II systems. The equilibrium diagram is computed at a temperature of 306 K.


Platforms: Matlab

In the program, an example from the field of nonlinear chemical dynamics is presented. Governing equation and reaction scheme can be found in G. Nicolis, Dynamique Chimique, Thermodynamique, cindoTetique et mdoTecanique statistique, Dunod, Paris 2005. We use the arc length continuation method to...


Platforms: Matlab

The program computes the liquid-liquid equilibrium diagrams for a type I ternary system based on the NRTL model. The ternary mixture: water-ethylacetate-acetone is an example of type I systems. The equilibrium diagram is obtained at a temperature of 288.15 K.


Platforms: Matlab

The development and curation of a range of XML-based tools for using Chemical Markup Language (CML), including XSD XML Schemas for validation, datatyping and constraining CML documents and XSLT Stylesheets for transforming, filtering and rendering.


Platforms: Windows, Mac, Linux

The Chemical Structures Project is a set of 3D structures of molecules in CML format. Each file contains also some physical properties, which can be access using a web browser or a CML file reader.


Platforms: Windows, Mac, Linux

Vapour Liquid Equilibrium (VLE) is a program written in java for simulation of various VLE calculations like bubble point, dew point, flash point, Pxy and Txy diagrams, etc. It supports user defined methods for activity and fugacity calculations.


Platforms: Windows, Mac, Solaris, Linux

This being a very basic program for the demonstration of bubble and dew point calculations of a ideal binary VLE mixture obeying Raoult's. The basic purpose of this program is to demonstrate VLE P-T-x-y calculations of a ideal binary mixture and to get related data in graphical form for any such...


Platforms: Matlab

Gas absorption is a very ubiquitous unit operation in any chemical plant. It has in common with liquid-liquid extraction that there are two carrier streams and one solute to be partioned between them. Here, we use the McCabe and Thiele graphical method to study the separation of acetone from air....


Platforms: Matlab

The programs compute the vapor-liquid diagram of an ethane-benzene mixture at 25dlT-C and 175dlT-C. This binary mixture exhibits a peculiar behavior because the volatilities of ethane and benzene are very different. We use the SRK equation of state to compute equilibrium constants. This problem...


Platforms: Matlab

A reaction object contains parameters that describe a chemical reaction scheme in terms of reagents, reaction steps, rate constants and equilibrium constants. The reaction can be evaluated to provide concentrations of species as a function of time and starting concentration. The reaction can also...


Platforms: Matlab

How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas! Sample Learning Goals * Balance a chemical equation. * Recognize that atoms are conserved in a chemical reaction. * Describe the difference between coefficients and...


Platforms: Mac

The STP LJ Thermal Equilibrium program simulates the interaction between two systems of Lennard-Jones particles brought into thermal contact. The purpose of this simulation is to explore the nature of thermal equilibrium and the relation, if any, between the kinetic and potential energies of two...


Platforms: Mac