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Taiwan,[II][k] officially the Republic of China (ROC),[I][l] is a country[27] in East Asia.[o] It is located at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast, and the Philippines to the south. The territories controlled by the ...
R is a programming language for statistical computing and data visualization. It has been adopted in the fields of data mining, bioinformatics, and data analysis. [8] The core R language is augmented by a large number of extension packages, containing reusable code, documentation, and sample data. R software is open-source and free software.
R Aquarii (R Aqr) is a variable star in the constellation Aquarius. R Aquarii is a symbiotic star believed to contain a white dwarf and a Mira-type variable in a binary system. The orbital period is approximately 44 years. The main Mira-type star is a red giant, and varies in brightness by a factor of several hundred and with a period of slightly more than a year; this variability was ...
The Nissan GT-R (Gran Turismo–Racing; model code: R35; Japanese: 日産・GT-R; Nissan GT-R) is a car built by Japanese marque Nissan since 2007. It has a 2+2 seating layout and is considered both a sports car and a grand tourer. The engine is front-mid mounted and drives all four wheels. It succeeds the Nissan Skyline GT-R, a faster variant ...
- Dimensions
- Relationship with The Boltzmann Constant
- Measurement and Replacement with Defined Value
- Specific Gas Constant
- U.S. Standard Atmosphere
- External Links
From the ideal gas law PV = nRTwe get: 1. R = P V n T {\displaystyle R={\frac {PV}{nT}}} where P is pressure, V is volume, n is number of moles of a given substance, and T is temperature. As pressure is defined as force per area of measurement, the gas equation can also be written as: 1. R = f o r c e a r e a × v o l u m e a m o u n t × t e m p e r...
The Boltzmann constant kB (alternatively k) may be used in place of the molar gas constant by working in pure particle count, N, rather than amount of substance, n, since: 1. R = N A k B , {\displaystyle R=N_{\rm {A}}k_{\rm {B}},\,} where NA is the Avogadro constant.For example, the ideal gas lawin terms of the Boltzmann constant is: 1. P V = N k B...
As of 2006, the most precise measurement of R had been obtained by measuring the speed of sound ca(P, T) in argon at the temperature T of the triple point of water at different pressures P, and extrapolating to the zero-pressure limit ca(0, T). The value of Ris then obtained from the relation: 1. c a ( 0 , T ) = γ 0 R T A r ( A r ) M u , {\displays...
The specific gas constant of a gas or a mixture of gases (Rspecific) is given by the molar gas constant divided by the molar mass (M) of the gas or mixture: 1. R s p e c i f i c = R M {\displaystyle R_{\rm {specific}}={\frac {R}{M}}} Just as the molar gas constant can be related to the Boltzmann constant, so can the specific gas constant by dividin...
The U.S. Standard Atmosphere, 1976 (USSA1976) defines the gas constant R∗as: 1. R∗ = 8.31432×103 N⋅m⋅kmol−1⋅K−1 = 8.31432 J⋅K−1⋅mol−1. Note the use of kilomoles, with the resulting factor of 1000 in the constant. The USSA1976 acknowledges that this value is not consistent with the cited values for the Avogadro constant and the Boltzmann constant. T...
Ideal gas calculator Archived 2012-07-15 at the Wayback Machine– Ideal gas calculator provides the correct information for the moles of gas involved.Ronald Wilson Reagan (/ ˈ r eɪ ɡ ən / RAY-gən; February 6, 1911 – June 5, 2004) was an American politician and actor who served as the 40th president of the United States from 1981 to 1989. A member of the Republican Party, his presidency constituted the Reagan era, and he is considered one of the most prominent conservative figures in American history.
The Internal Revenue Service (IRS) is the revenue service for the United States federal government, which is responsible for collecting U.S. federal taxes and administering the Internal Revenue Code, the main body of the federal statutory tax law.It is an agency of the Department of the Treasury and led by the Commissioner of Internal Revenue, who is appointed to a five-year term by the ...
