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equation of state

noun

, Physics.
  1. an equation relating the temperature, pressure, and volume of a given thermodynamic system.


equation of state

noun

  1. any equation that expresses the relationship between the temperature, pressure, and volume of a substance
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Example Sentences

Physicists seek accurate measurements of neutron stars’ masses and radii, which would help reveal their “equation of state”—the relationship between pressure and density within these stars.

Knowing the neutron star equation of state would in turn indicate what kind of matter hides inside them.

The equation of state they derived predicted that a neutron star containing the mass of 1.4 suns would have a radius of about 11.75 kilometers, plus or minus .81 to .86 km.

A Chinese–European satellite called the enhanced X-ray Timing and Polarimetry mission, or eXTP, is expected to launch in 2027 and study both isolated and binary neutron stars to help determine their equation of state.

In the process, she realized that the landscape for neutron-star research—in particular, the question of the equation of state—should look very different by then.

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equation of motionequation of time