Recent content by Rahulx084

I tried , but cannot think of any experimental way . I guess my domain of knowledge is restricted to theoretical part .

I would love to see an example , if you could tell me or just provide me a reference/link .

Sir Chet here in this example it says ,For n moles of a constant composition mixture and integration is at constant composition. Does that mean we can't use this equation of fugacity coefficient for a system where there is change in composition occurring ? Also, We know that Partial molar...

Okay Sir Chet Got it

Are my conclusions right? I'm not considering the definition from the pictures I attached , I'm following what you told me.

I was actually super confused because of this above thing that I attached . Can we conclude that 1)Air is a homogeneous phase with constant composition , liquid water or liq vapor separately taken are pure substances also separately they are homogeneous phase with constant composition while...

But isn't it true that air is also a pure substance?

That is we can say air is homogeneous phase right? And Sir what's is the difference between a substance of homogeneous phase with constant composition and Pure substance.

I have a doubt from post#3 of this thread , you said homogeneous phase is the one where material is spatially uniform. Does that mean water and water vap mixture is a homogeneous phase? If not please give me one or two examples of homogeneous phase.

So can we conclude that the only requirement to use this equation of Total Gibbs free energy change d(ng)=(nv)dp - (ns)dT. is that the system must be closed or if its open system then the Molar Gibbs free energy will remain constant provided the composition is constant .

Further in post#7 you proved that total gibbs free energy change is 0 during phase change , so further solving it will end up with μ(liq)=μ(vap).

Lets consider it total free energy of n moles

I have two doubts here on: 1) In the first line of picture I uploaded it says consider a closed system consisting of two phase in equilibrium . That means we talking about two different phases where our species is being transferred from one to another, that is it isn't a system of homogeneous...

Then how we do use this equation during a phase change operation and say as temperature and pressure is constant ,gibbs free energy change is 0. Here is what I'm making out , that we apply dg(vapour) separately and dg(liquid) separately and for total change we do , dg= dg(vap) +dg(liq) , and...

Can we say liq-vap water system is a homogeneous phase with constant composition system?