FAQ
 
Malt for Windows
  Home
  Order
  User
  FAQ
 

Kagaku Gijutsu-Sha
TEL.+81-3-5809-1132
FAX.+81-3-5809-1138
 Thermodynamic Database
MALT for Windows

'MALT for Windows' is called simply 'MALT' herein.

・General
Q1 What is MALT2?
Q2 Can we use MALT under the LAN environment?
Q3 Can MALT/CHD draw Pourbaix diagrams?
Q4 How does MALT offer its manuals?
 
・Technical
Q11 What is GEF?

Q1 What is MALT2?
A1 MALT2 is the previous version of MALT, it worked only under Japanese MS-DOS. Although it is discontinued, it is useful to refer to MALT2 for understanding MALT.

Q2 Can we use MALT under the LAN environment?
A2 No. MALT uses USB dongle for the copy protection. You may install MALT in plural numbers of PCs but MALT works on only one PC with the dongle inserted at the time.

Q3 Can MALT/CHD draw Pourbaix diagrams?
A3 At present, MALT does not contain any aqueous species in its main database. Even so, the thermodynamic data for some aqueous species are available at 298.15 K and those data can be utilized in constructing the Pourbaix diagram. On the other hand, the present CHD for Windows can provide a basis of constructing such Pourbaix diagrams though this has been developed originally for constructing high temperature chemical potential diagrams.

Please see "Appendix For Setup Pourbaix Diagrams" for details.

Q4 How does MALT offer its manuals?
A4 Each program of MALT, CHD, and gem has its Help as Help menu. Besides, MALT is installed with MALT, CHD, and gem manuals as pdf files. You can read all of them in this homepage too!          - - > manuals
There is no paper-printed manuals.

Also please refer to the list of files included in MALT installed folder.

Q11 What is GEF?
A11 GEF stands for Gibbs Energy Function. This function is the same as the free energy function which is utilized in the JANAF ThermochemicalTables. In MALT, this function is called Gibbs energy function just because the free energy was renamed as Gibbs energy or Helmholtz energy.
Definition:
     
Here, T0 is the reference temperature selected at 0 K or 298.15 K. Within MALT database, 298.15 K is adopted.
How to use:
     
As above equation indicates, this function is frequently used when the standard enthalpy change for reaction at 298.15 K is to be derived from the high temperature value of the Gibbs energy change for reaction. Because the absolute entropy value at 298.15 K is used in derivation of the Gibbs energy function, this procedure is called as the third law method. Mainly this treatment is used when the thermodynamicfunctions are derived from the vapor pressure measurements.
Since this function is not used during the normal thermodynamic analyses, details are not described in MALT for Window痴 Manual.

   
    HOME    Product    User's Page    FAQ    Contact   
 
kagakulogo  
2-10-8 Yanagibashi, Taito-ku, Tokyo 111-0052 Japan
Tel +81-3-5809-1132 Fax +81-3-5809-1138
FAQ