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AASCIT Communications | Volume 3, Issue 2 | Feb. 15, 2016 online | Page:64-70
Adiabatic Compressibility of the Variable Chaplygin Gas
In this paper, we have deduced an analytic expression for the adiabatic compressibility for a Chaplygin gas which is a function of the pressure P and temperature T. We have considered the work of Panigrahi (2015) for variable Chaplygin gas, exotic matter used in some cosmological theories whose equation of state is of the form with and n is a constant. The expression obtained for was used for the determination of the value of the thermal capacity at constant pressure for variable Chaplygin gas. It is predicted in this research the behaviour of the adiabatic compressibility of Chaplygin gas in the limit of high and low pressure. We have found that the adiabatic compressibility is function of the pressure and when and if as in the ideal gas and is always positive with n<0.
Manuel Malaver, Department of Basic Sciences, Maritime University of the Caribbean, Vargas State, Venezuela.
Adiabatic Compressibility, Chaplygin Gas, Cosmological Theories, Equation of State, Exotic Matter
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Arcticle History
Submitted: Jan. 7, 2016
Accepted: Jan. 21, 2016
Published: Feb. 15, 2016
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