the second law of thermodynamics is not right for real gas?

Question

the second law of thermodynamics is not right for real gas
please read as follow:
http://bbs.tech.163.com/tech23/8531,0,50,0,40,1.html?userid=-0ZGV

Answer 1

2nd law that's the entropy thing.
Most statements of the 2nd law are sufficiently vague so that they will apply to any situation. "No process is possible in which the sole result is the absorption of heat from a reservoir and its complete conversion into work" -P.W.Atkins, Physical Chemistry.

As for the "paper" you cite this appears to be some mumbo-jumbo about gravity fields. It is well known that gas density changes with height it follows a Boltzmann distribution no need for all those complex equations.

Answer 2

mannnn.......u r absolutely rite whe u sa dat the second law is not for a real gas. the laws of thermodynamics were formulated assuming that gases are ideal. as no gas is ideal, the laws cannot be applied for a 100% correct result, but on the whole the answer u get using the law is more or less correct but is never totally correct.
even when solving problems related to the second law u shud realise that the data provided to u is not absolutely correct---many things r neglected for example, the force b/w 2 molecules and so on.
science is based on assumptions so that we are able to explain most of the things happeniong in the universe.

Answer 3

The second law of thermodynamics applies to all things. Everything. This includes real gas.

Answer 4

There is a common misconception that the laws of thermodynamics apply only to "ideal" things. That's because they are stated in such general terms and so widely applicable that it's almost difficult to believe they could apply everywhere, irrespective of the details of any given real system. But they do--they're that powerful, precisely because they are discoverable without consideration of the specifics.

Answer 5

yes, the second law of thermodynamics is for ideal gas, which does not exist in the real world.

Answer 6

Yes, I know that too. And I thought I was the only one
knowing it.

Tell you a joke

And the joke goes:

-Doctor! I have a serious problem, I can never remember what i just said.
-When did you first notice this problem?
-What problem?

One more joke:

A guy calls his vet and says "What should I do with my cat?Vet says "What do you mean? Guy says "I had a leak in my lawnmowers gas tank and the cat drank the gas. Then the cat began to run around and around the yard, climbed a tree. then fell out of the tree stiff. Vet says "Is the cat dead? Guy replies "nope he ran out of gas.

Answer 7

you're drawing fake conclusions in accordance with fake assumptions. The "empty area" isn't a appropriate vacuum. easily even "sturdy products" are many times "vacuum" (extensive voids between atoms).

Answer 8

oh yes, it is...