arXiv:hep-th/0601096 v1 15 Jan 2006 Generalized Phase Space and Statistical Mechanics of Ideal Gas Kourosh Nozari and S. Hamid Mehdipour Department of Physics, Faculty of Basic Sciences, University of Mazandaran, P. O. Box 47416-1467, Babolsar, IRAN e-mail: knozari@umz.ac.ir Abstract Generalized Uncertainty Principle(GUP) leads to modification of fundamental volume ω 0 of accessible phase space for representative points. In this paper we consider the effects of this modification on thermodynamics of an ideal gas in mi- crocanonical ensemble. PACS: 04.60.-m, 05.70.Ce, 51.30.+i Key Words: Quantum Gravity, Generalized Uncertainty Principle, Statistical Me- chanics, Ideal Gas 1