用于计算空气中氧气摩尔数的 R 包

Question

是否有包含计算空气中氧气摩尔数、给定温度、压力等的函数的 r 包

我正在寻找类似 marelac 的东西，但要寻找空气，而不是水

Answer 1

求解 n:

的 PV = nRT

n = PV/RT

创建函数：

moles_n <- function( press, # in SI unit pascals
                     volume, # in SI unit cubic metres
                     R_const,
                     temp  # degrees Kelvin
                     ){ 
                R_const = 8.3144598(48) # J⋅mol−1⋅K−1

                press*vol/(R_const*temp) }

查看的单位和常量：https://en.wikipedia.org/wiki/Gas_constant. (I can remember some physical constants but this one went back to high-school chemistry class, more than half a century ago in my case.) I suppose if one were entirely scrupulous, one would put in the correction factors for different gases. See: https://en.wikipedia.org/wiki/Van_der_Waals_equation and http://chemed.chem.purdue.edu/genchem/topicreview/bp/ch4/deviation5.html

我想也许会有一个你要求的包（虽然你应该意识到 package-request 问题通常会被关闭。）我找到了两个，CHNOSZ-包和 seacarb-package，这确实表明了实例化“热力学”函数的努力”，但我对函数摘要的细读让我认为这些也主要用于水溶液：

http://finzi.psych.upenn.edu/R/library/CHNOSZ/html/00Index.html

最终我找到了包- IAPWS95，你应该仔细检查：

http://finzi.psych.upenn.edu/R/library/IAPWS95/html/00Index.html

我发现最有效的搜索 R-way 是使用 sos::findFn:

findFn("pressure temperature gas")
found 89 matches;  retrieving 5 pages
2 3 4 5 
Downloaded 87 links in 21 packages.

用于计算空气中氧气摩尔数的 R 包

R package for calculating the moles of a oxygen in air

packages

r