What About Plasma?

Classical Mechanics Level 1

True or false?

There are substances that can coexist simultaneously in three states of matter: solid, liquid and gas.

False True

A Former Brilliant Member by A Former Brilliant Member

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5 solutions

The temperature and pressure at which this occurs is called the Triple Point . This must be very specific. For water, this is at a temperature of 273.1 6 ∘ K 273.16 ^\circ K ( ≈ 0.0 1 ∘ C \approx0.01 ^\circ C ) and a partial vapor pressure of 611.73 611.73 pascals ( ≈ 0.06 \approx 0.06 atmospheric pressure).

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Precisely 273.16 K

Ameya Salankar - 5 years, 9 months ago

@Andrei Golovanov i think your question should be more specific. Matter of 3 different compounds can also co-exist. U should mention that "Matter of same chemical composition can coexist simultaneously in three states of matter: solid, liquid and gas."

Aditya Kumar - 5 years, 9 months ago
Hadia Qadir
Aug 30, 2015

True, it is called the triple point of a substance.

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Govind Rathi
Sep 30, 2015

Even water does!

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Gabriel Aramayo
Sep 20, 2015

Mind blowing, the reason I love science

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Ayesha Siddiqui
Aug 30, 2015

At specific temperature and pressure for any particular substance, all three states of matter can co-exist in equilibrium. This is called Triple point of that substance.

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