Calculates the volume of every type of reactor you can find in chemical engineering when you are working with chemical reaction and simultaneous absorption: gas-liquid reactors. In User RPL. Includes Spanish-language documentation in Word format.
Computes the parameters needed to solve the 1D molecular transport equations across a finite thickness medium under transient state. The property transported can be concentration, velocity or temperature. The solutions depend on the geometry of the system (rectangular, spherical or cylindrical coordinates).
A powerful chemical equation balancer which is written mostly in assembly language. It can balance a chemical equation in seconds regardless of the complexity of the equation.
ChemLab 2.7 is a graphical periodic table of elements with element symbols and a fast property browser with 22 properties. Also has a formula balancer and molecular weight calculator.
This library is for testing different kinetics models.You can test potential or some Langmuir-Hinshelwood models. The kind of data allowed are integral or differential one.
This program simulate changes of TºC and C mol/L (concentration) of a CSTR reactor, with the Newton method, and the units for T and C can be Celsius and mol/L or K and mol/L, depending on the equation. You need two equations, dT/dt, dC/dt and the value of the initial values like C and T. You need the interval i as time and decimals. This graphs the points of the simulation and the results table.
Program written in User RPL which allows you to calculate the residence time distribution in chemicals reactors and others that you could need in order to know the reactor model, etc. Very useful for chemical engineers. The zip file contains some information in Spanish (Word format) and the program.
Calculates enthalpy variations given initial and final temperature, or calculates final temperature, given the initial temperature and the enthalpy variation.
Contains the old Equation Library and Periodic Table libraries from HP's Equation Library card for the 48SX, ported to the 49g+ and 50g. The Equation Library libraries are the same as those included with ROM 2.08 and higher, and are included here in case they are accidentally deleted from the calculator.
Contains the old Equation Library and Periodic Table libraries from HP's Equation Library card for the 48SX, ported to the 49g+ and 50g and translated into Spanish.
New and improved version of Flashcam, useful for chemical engineering students. Gives the fractional composition of the outflow of liquid and steam from a flash system. Also includes a version (2.X) intended for use with XCELL 48 for easier-to-read output.
Gas I is a utility that uses the state equations of thermodynamics with 15 composed, and they are in a ready-to-use database. Includes PDF documentation.
Calculates ISO 6976:1995 properties of natural gas, including calculation of calorific values, density, relative density and Wobbe index from composition. Written in User RPL. The program size can be reduced by moving static data structures to port 1 or 2. Full instructions can be found in the user manual. The user manual has been simplified and is now in HTML format.
These two applications help with a specific kind of stoichiometry problem I encounter every once in a while in chemistry class. Each one determines which of two given reactants are the limiting reagent in a reaction and also outputs the grams of reactant produced and leftover reactants (using the limiting reagent). The first program, Limiting Reagent (Limiting.hp), takes the molar masses and quantities (all in grams) of the reactants and the desired product to give the results. The second program, (LtMoles.hp) is a bit more advanced and assumes you are only given the number of moles of the reactants. It uses the built-in periodic table to automatically determine the molar weights for you and then outputs which reactant is limiting and so forth.
Periodic table of elements with fast centered cursor moving and a molar weight calculator which handles parentheses and a properties browser. The smaller previous version is included.
This program serves to find the Mass to molar (Mi), the mass (mi) and the fraction mass (fmi) of a certain substance. Used in the course of Thermodynamics II.
Equations programmed to calculate the properties of the air as an ideal gas, temperature range: 200-2250 K (the error is always less than 1%, but in pr in low temperatures when error is nearly 4.8%).
Clone of HP's periodic table of elements library, which was originally written for the 48 and ported to the 49 series. SpeedPT was rewritten from scratch to be faster than HP's library while taking less memory and maintaining all the same functionality. Works on both the 48 series (where it can be made even faster with the addition of SpeedUI) and the 49 series (for which it includes the missing 10-pixel font, which had been dropped from the 49 series). Version 9.05 adds SpeedUI QuickStartMenu support.
This library contains five state equations (virial, van der Waals, Redlich-Kwong, Redlich-Kwong-Soave, Peng-Robinson), six equations for activity coefficients (Symmetric, Margules, Van Laar, UNIQUAC, UNIFAC), and four programs for calculation of bubble temperature and pressure, and dew temperature and pressure. Also includes the Antoine equation for 3 and 5 parameters.