plasma vs. supercritical fluid

[Troyvdg]

I just took my first GC qvault and had a question on this.

It says, beyond the critical point:

A. the boundary between liquid and gas phase continues
B. Evaporation cannot occur because the liquid phase is favorable
C. Condensation cannot occur because the gas phase is favorable
D. Matter exists as plasma, a fourth state *Answer
E. the nucleus of atoms decomposes



So my question is...Is a supercritical fluid the same thing as plasma?

thanks!👍

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[412smb412]

I just took my first GC qvault and had a question on this.

It says, beyond the critical point:

A. the boundary between liquid and gas phase continues
B. Evaporation cannot occur because the liquid phase is favorable
C. Condensation cannot occur because the gas phase is favorable
D. Matter exists as plasma, a fourth state *Answer
E. the nucleus of atoms decomposes



So my question is...Is a supercritical fluid the same thing as plasma?

thanks!👍

i guess so... but what i do know is that in supercritical fluid its neither liquid nor gas but has teh properties of both. and u can't get it back to the previous state unless cooled

 

[BRZ24]

I just took my first GC qvault and had a question on this.

It says, beyond the critical point:

A. the boundary between liquid and gas phase continues
B. Evaporation cannot occur because the liquid phase is favorable
C. Condensation cannot occur because the gas phase is favorable
D. Matter exists as plasma, a fourth state *Answer
E. the nucleus of atoms decomposes



So my question is...Is a supercritical fluid the same thing as plasma?

thanks!👍

I have never heard of Chad or any of my chemistry teachers saying that plasma is the same thing as supercritical fluid.

Just know that the critical point is the point where you go beyond that point, you can no longer tell the difference between a liquid and a gas

 

[Smurf12]

Plasma is a term used typically used in advanced level physics/chemistry textbooks and is recognized as a fourth state of matter (the other three gas, liquid, solid) but has characteristics similar to gas. It does not have definite volume or shape and could be viewed as ionized gas. This is what stars are made of.

Supercritical fluid is substance that exists with the it's pressure and temperature jacked up after its critical point. It's neither classified as a gas or liquid, and is obviously not a solid. Stars however, are not made of super critical fluid.

Overall, plasma and supercritical fluid are NOT the same and are not terms used interchangeably. You should know the difference but most importantly you should know the latter term cold.