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In a solid, constituent particles (ions, atoms, or molecules) are closely packed together. The forces between particles are so strong that the particles cannot move freely but can only vibrate. As a result, a solid has a stable, definite shape, and a definite volume. Solids can only change their shape by an outside force, as when broken or cut.
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A small piece of rapidly melting solid argon shows two concurrent phase changes. The transition from solid to liquid, and gas to liquid (shown by the white condensed water vapour). Other phase changes include: Transition to a mesophase between solid and liquid, such as one of the "liquid crystal" phases.
Scammers know how to fake a phone number. Kerskie describes a scam where a client received a spoof call from what he thought was his daughter’s phone. The caller claimed his daughter was in ...
Though the compression/heating process of solids can be constant temperature , and constant pressure (isobaric), it can not be a constant volume (isochoric), At high P-T, the pressure for the ideal gas is calculated by the force divided by the area, while the pressure for the solid is calculated from bulk modulus (K, or B) and volume at room ...
In such two-dimensional cases, photon gases with tuneable chemical potential, much reminiscent to gases of material particles, can be observed. [22] Electric charge is different because it is intrinsically conserved, i.e. it can be neither created nor destroyed. It can, however, diffuse. The "chemical potential of electric charge" controls this ...
(For the polyatomic ideal gas, N o is the number of atoms in a molecule.) In gas, constant-pressure specific heat capacity c p,f has a larger value and the difference depends on the temperature T , volumetric thermal expansion coefficient β and the isothermal compressibility κ [ c p,f – c v,f = Tβ 2 /( ρ f κ ), ρ f : the fluid density].
A San Diego man has been arrested on suspicion of smuggling potent greenhouse gases into the United States from Mexico, becoming the first in the nation to be charged with smuggling the ...