how does the rate law show how concentration changes after the rate of reaction
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8.314 J/mol K
Boltzmann's constant (not bolt'z man's!) is 1.38064852*10-23 m2 kg s-2 K-1
The value of the constant, better known as the Stefan–Boltzmann constant is given, in SI units byσ = 5.670373×10^−8 W m^−2 K^−4W = Wattsm = metresK = Kelvin
8.998 X 10^9 N*m^2/C^2
"Characteristic Gas Constant"The constant 'R' used in the characteristic gas equation PV=RT , has a constant value for a particular gas and is called 'Characteristic gas constant' or 'specific gas constant' . Its value depend upon the temperature scale used and the properties of the gas, under consideration.The value of R will be.For atmospheric pressure air,R= 287 J/kg/k