Recent content by mpv55

Recently, I was reading the Dixon (Annals Math. Stat. 22, (1951) 68-78) method for extreme (outliers) values. He considered that there are n ordered values (x1, x2, ...xn) of an analytical measurement. The values belong to a normal distribution. He defined two equations: 1. For Critical value...

I wrote an article on it to demonstrate the problem with the steam tables. Similarly, I proposed a method to measure the properties of water (liquid) correctly. I have big discussion the editor of JPCRD and the authority. Their reply is that a state function can have multiple values. So, the...

Yes, you are right. A state function has to be single valued function. It is a definition or based on the some relation. It is not the question, the question is that the steam Tables for pure water which is published in a NIST and AIP journal, J. Phys. Chem. Ref. Data, 2000, has multiple values...

Dear Daniel: If someone signs the quotation, he knows about the theory and don't write any comments without thinking. The Gibbs phase rule is given in all the books, there is no need to cite any particular book. Best wishes Mahendra

Adjust add "in a phase of a pure system of constant". "Nothing is more practical than a good theory" Does it say something to you!

Any two state variables should define completely the pure system of constant mass. You can read any book on thermodynamics.

Let us keep is simple. A state function can have multivalues or not.

Yes, enthalpy is generally represented by H. Let us read H for U. Thermodynamics laws are applicable to all systems, real or ideal. If we consider T and H as independent variables, it is impossible to predict the right value of P. The meaning of two values of P is that P is not an exact...

Does a state function be multi-valued function A thermodynamic state function should be single valued function of independent varibles. In case of steamtables of pure water, there is same entahlpy (U=2000 kJ/kg) at temperature T1=700K and pressure P1=63.458 MPa, and at T2=700K and P2=456.356...