An ideal gas or perfect gas is a hypothetical gas consisting of identical particles of negligible volume, with no intermolecular force (physics)s. Additionally, the constituent atoms or molecules undergo perfectly elastic collisions wih the walls of the container. The real gases that actually exist do not exhibit these exact properties, although the approximation is often good enough to treat real gases as ideal gases. There are basically three types of ideal gas: * the classical or Maxwell-Boltzmann ideal gas, * the ideal quantum Bose gas, composed of bosons, and * the ideal quantum Fermi gas, composed of fermions. == Classical ideal gas == The equation of state of a classical ideal gas is the ideal gas law. The internal energy of an ideal ''monatomic'' gas consists entirely of the translational kinetic energy of its particles. The total internal energy of a monatomic ideal gas is therefore simply: where U is internal energy, n is the number of particles in moles, R is the ideal gas constant, T is the absolute temperature, N is the number of particles, and k is the Boltzmann constant. The probability distribution of particles by velocity or energy is given by the Boltzmann distribution. The ideal gas law is an extension of primitive experimentally discovered gas laws. While, strictly speaking, only an ideal gas obeys these gas laws exactly, at low density and high temperature, real fluids roughly approximate the behavior of a classical ideal gas. However, at lower temperature or higher density, a real fluid deviates strongly from the behavior of an ideal gas, particularly as it condenses from a gas into a liquid or solid. These deviations are often approximated through quantum-mechanical statistical methods. == Ideal quantum gases== At extremely low temperature or high density, where the thermal wavelength of gas particles is comparable to the distances between them, Quantum mechanics effects become apparent. Under such conditions, an ideal gas of bosons will be governed by Bose-Einstein statistics and the distribution of energy will be in the form of a Bose-Einstein distribution. An ideal gas of fermions will be governed by Fermi-Dirac statistics and the distribution of energy will be in the form of a Fermi-Dirac distribution. Thermodynamics Gases lv:Ideāla gāze
Bold textAnybody know about the deviation of real gas with ideal gas in PV/RT graph? for ideal gas, pv/rt=1 for most of the real gas, (a)p<500atm, pv/rt<1; (b)p greater 500atm, pv/rt greater 1 for (a), it's intermolecular attraction factor; can some one explain the factor of (b) molecular volumn factor? i don't understand.... Could please someone clarify whether a noble gas such as helium which I understand is normally monoatomic could be considered as an Ideal gas. As written in this article, an Ideal gas is defined as molecules... L.L. :Although this is inconsistent with common usage, a molecule is technically one or more atoms. That is, even if an ideal gas is defined as molecules, that would include the noble gases. User:Brianjd :See molecule. ==Real Gas== Why is there no article real gas? --User:Lode (Germany) 16:44, 19 Jul 2004 (UTC) :There is no need for an article real gas. A real gas is just a gas. :Real gas redirects here - I have added a definition in this article. User:Brianjd 08:45, 2004 Dec 12 (UTC)
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Words begining with Ideal_gas:
Ideal_gas
Ideal_gas
Ideal_gases
Ideal_gas_constant
Ideal_gas_equation
Ideal_Gas_Law
Ideal_gas_law
Ideal_gas_law
Ideal gas
An ideal gas or perfect gas is a hypothetical gas consisting of identical particles of negligible volume, with no intermolecular force (physics)s. Additionally, the constituent atoms or molecules undergo perfectly elastic collisions wih the walls of the container. The real gases that actually exist do not exhibit these exact properties, although the approximation is often good enough to treat real gases as ideal gases. There are basically three types of ideal gas: * the classical or Maxwell-Boltzmann ideal gas, * the ideal quantum Bose gas, composed of bosons, and * the ideal quantum Fermi gas, composed of fermions. == Classical ideal gas == The equation of state of a classical ideal gas is the ideal gas law. The internal energy of an ideal ''monatomic'' gas consists entirely of the translational kinetic energy of its particles. The total internal energy of a monatomic ideal gas is therefore simply: where U is internal energy, n is the number of particles in moles, R is the ideal gas constant, T is the absolute temperature, N is the number of particles, and k is the Boltzmann constant. The probability distribution of particles by velocity or energy is given by the Boltzmann distribution. The ideal gas law is an extension of primitive experimentally discovered gas laws. While, strictly speaking, only an ideal gas obeys these gas laws exactly, at low density and high temperature, real fluids roughly approximate the behavior of a classical ideal gas. However, at lower temperature or higher density, a real fluid deviates strongly from the behavior of an ideal gas, particularly as it condenses from a gas into a liquid or solid. These deviations are often approximated through quantum-mechanical statistical methods. == Ideal quantum gases== At extremely low temperature or high density, where the thermal wavelength of gas particles is comparable to the distances between them, Quantum mechanics effects become apparent. Under such conditions, an ideal gas of bosons will be governed by Bose-Einstein statistics and the distribution of energy will be in the form of a Bose-Einstein distribution. An ideal gas of fermions will be governed by Fermi-Dirac statistics and the distribution of energy will be in the form of a Fermi-Dirac distribution. Thermodynamics Gases lv:Ideāla gāze
Ideal gas
Bold textAnybody know about the deviation of real gas with ideal gas in PV/RT graph? for ideal gas, pv/rt=1 for most of the real gas, (a)p<500atm, pv/rt<1; (b)p greater 500atm, pv/rt greater 1 for (a), it's intermolecular attraction factor; can some one explain the factor of (b) molecular volumn factor? i don't understand.... Could please someone clarify whether a noble gas such as helium which I understand is normally monoatomic could be considered as an Ideal gas. As written in this article, an Ideal gas is defined as molecules... L.L. :Although this is inconsistent with common usage, a molecule is technically one or more atoms. That is, even if an ideal gas is defined as molecules, that would include the noble gases. User:Brianjd :See molecule. ==Real Gas== Why is there no article real gas? --User:Lode (Germany) 16:44, 19 Jul 2004 (UTC) :There is no need for an article real gas. A real gas is just a gas. :Real gas redirects here - I have added a definition in this article. User:Brianjd 08:45, 2004 Dec 12 (UTC)
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IA | IB | IC | ID | IE | IF | IG | IH | IJ | IK | IL | IM | IN | IO | IP | IR | IS | IT | IU | IW | IX | IY | IZ |Words begining with Ideal_gas:
Ideal_gas
Ideal_gas
Ideal_gases
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Ideal_gas_equation
Ideal_Gas_Law
Ideal_gas_law
Ideal_gas_law
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