REFPROP is also a great option that is very useful. It's not free ($250 US), but it's maintained by the US National Institute of Standards and Technology.

Hello,

I find this document on the www. It could help if you don't already have it.

Your sincerely,

JF ANTOINE

Dear Anoop

a standard reference for thermodynamic properties is:

     Bruce E. Poling, John M. Prausnitz, John P. o'Connell:

     The Properties of Gases and liquids.

     McGraw-Hill, New York, 5th ed., 2000, ISBN 0-07-011682-2

You'll find this book in every good university library (or perhaps on the internat).

For your purpose, a much older book might be "ready to use" as it offers thermodynamic graphs, tables and computational equations.

     William C. Reynolds:

     Thermodynamic Properties in SI.

     Published by the Department of Mechanical Engineering,

     Stanford University, Stanford  CA (USA), 1979, ISBN 0-917606-05-1

Let me know if you don't find this book (I have a copy of the book and I could send you a scan of the important pages by email).

Best regards

Nikolaus