Which is the sixth state of matter?
- Solids
- Liquids
- Gas
- Superfluid
- BEC
- Fermionic condensate
- Rydberg molecule
- Quantum Hall State
- Strange matter
- Photonic matter
What state of matter has the least entropy?
The state of matter with the lowest entropy is fusion powered plasma. Nearly 100% of our part of the universe is in this state and, based on the laws of entropy, we can assume that our visible universe was all plasma in the beginning.
What state of matter has no shape of their own?
Properties of Liquids
- Force of Attraction: In liquids, there exists an appreciable amount of molecular force of attraction. ...
- Density: The molecules of liquids exhibit random motion but not as much as gases. ...
- Kinetic energy of molecules: The energy with which molecules move within the matter is their kinetic energy. ...
Which state of matter is the strongest?
11.1: States of Matter and Intermolecular Forces
- Learning Goals. ...
- States of Matter: Fig. ...
- Intermolecular Forces (IMF) The the term InterMolecular Force (IMF) literally means the forces between molecules, and as such, is often a misnomer, as simply speaking, not all matter is composed ...
- Properties of Matter that Depend on IMFs
Is asthenosphere solid or liquid?
Asthenosphere: lower mantle, composed of "plastic solid" akin to playdoh. Outer core: liquid.
Is asthenosphere in liquid state?
The asthenosphere (as THEHN uhs feer) is hotter and in a semi-liquid state. Starting at around 80 to 100 km deep, the rock in the asthenosphere slowly flows in a plastic state moving in a circular motion creating convection currents of hot rock. This moves heat from deep within the mantle towards the surface.
Why is asthenosphere liquid?
They drift because they are sitting on a layer of solid rock (the upper mantle or "asthenosphere") that is weak and ductile enough that it can flow very slowly under heat convection, somewhat like a liquid.
Is the asthenosphere totally liquid?
Is the asthenosphere liquid? The asthenosphere is almost solid although some of its regions are molten (e.g. below mid-ocean ridges). The lower boundary of the asthenosphere within the mantle is not well defined. … In some regions the asthenosphere could extend as deep as 700 km (430 mi).
Is the asthenosphere semi-solid?
Scientists believe that below the lithosphere is a relatively narrow, mobile zone in the mantle called the asthenosphere (from asthenes, Greek for weak). This zone is composed of hot, semi-solid material, which can soften and flow after being subjected to high temperature and pressure over geologic time.
Why asthenosphere is semi liquid?
The temperature and pressure of the asthenosphere are so high that rocks soften and partly melt, becoming semi-molten.
Is the asthenosphere dense?
-Asthenosphere - mean density about 3.3 g/cc. Denser and hotter than lithosphere above. under tremendous pressure and heat so that it is "soft", near melting point, and flows plastically.
How would you describe the asthenosphere?
The asthenosphere is the layer of the Earth that lies below the lithosphere. It is a layer of solid rock where the extreme pressure and heat cause the rocks to flow like a liquid. The rocks in the asthenosphere are not as dense as the rocks in the lithosphere.
Which layer is completely in a liquid state?
The outer core is the liquid largely iron layer of the earth that lies below the mantle. Geologists have confirmed that the outer core is liquid due to seismic surveys of Earth's interior.
What is the state of matter for the mantle?
State of Matter The mantle is the Earth's thickest layer. It makes up about 85% of Earth's weight. The top part is a solid and is joined with the crust and called the lithosphere.
Why is the mantle both solid and liquid?
The theories are the result of measurements during volcanic activity and sound waves. The mantle is a plastic solid of varying densities which allow convection currents to flow molten rock towards the earth's surface resulting in volcanic activity, tectonic plate movement, earthquakes, and movement of continents.
Why mantle is in liquid state?
The mantle in liquid state due to its pressure and high temperatures. Explanation: Earth's mantle is located under the earth the crust of the planet and is entirely made of the liquid magma and in the form of solid rock.
Overview
The asthenosphere (Ancient Greek: ἀσθενός [asthenos] meaning "without strength") is the mechanically weak and ductile region of the upper mantle of Earth. It lies below the lithosphere, between approximately 80 and 200 km (50 and 120 miles) below the surface, and extends as deep as 700 km (430 mi). However, the lower boundary of the asthenosphere is not well defined.
Characteristics
The asthenosphere is a part of the upper mantle just below the lithosphere that is involved in plate tectonic movement and isostatic adjustments. It is composed of peridotite, a rock containing mostly the minerals olivine and pyroxene. The lithosphere-asthenosphere boundary is conventionally taken at the 1,300 °C (2,370 °F) isotherm. Below this temperature (closer to the surface) the mantle …
Boundaries
The asthenosphere extends from an upper boundary at approximately 80 to 200 km (50 to 120 miles) below the surface to a lower boundary at a depth of approximately 700 kilometers (430 mi).
The lithosphere-asthenosphere boundary (LAB ) is relatively sharp and likely coincides with the onset of partial melting or a change in composition or anisotropy. Various definitions of the bou…
Origin
The mechanical properties of the asthenosphere are widely attributed to partial melting of the rock. It is likely that a small amount of melt is present through much of the asthenosphere, where it is stabilized by the traces of volatiles (water and carbon dioxide) present in the mantle rock. However, the likely amount of melt, not more than about 0.1% of the rock, seems inadequate to fully explain the existence of the asthenosphere. This is not enough melt to fully wet grain boun…
Magma generation
Decompression melting of asthenospheric rock creeping towards the surface is the most important source of magma on Earth. Most of this erupts at mid-ocean ridges to form the distinctive mid-ocean ridge basalt (MORB) of the ocean crust. Magmas are also generated by decompressional melting of the asthenosphere above subduction zones and in areas of continental rifting.
See also
• Seismology § History
Bibliography
• Turcotte, Donald L.; Schubert, Gerald (2002). Geodynamics (2nd ed.). Cambridge University Press. ISBN 978-0-521-66624-4. Retrieved 24 January 2016.
• McBride, Neil; Gilmour, Iain (2004). An Introduction to the Solar System. Cambridge University Press. ISBN 978-0-521-54620-1. Retrieved 24 January 2016.
External links
• San Diego State University, "The Earth's internal heat energy and interior structure" Archived 2011-03-03 at the Wayback Machine