
The value of R in SI unit is:
Answer
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Hint:R = universal gas constant. The gas constant is a proportionality constant that relates the energy scale to the temperature scale for a mole of particles at a given temperature. Units for the gas constant vary, depending on other units used in the equation.
Complete step by step answer:
The ideal gas constant is a universal constant that we use to qualify the relationship between the properties of a gas. The constant K that we typically use relates pressure in atmosphere volume in litres and temperature in Kelvin. In this can it has the value and units of .
Also, the ideal gas law is: pV = nRT, where n is the number of moles, and R is universal gas constant. The value of R depends on the units involved, but is usually stated with S.I. units as: R = 8.314 J/mol·K (also R = 8.314 Joules/Kelvin.)
It is crucial to match your units of Pressure, Volume, number of mole, and Temperature with the units of R. If you use the first value of R, which is 0.082057 L atm mol-1K-1, your unit for pressure must be atm, for volume must be liter, for temperature must be Kelvin.
Note:
The gas constant constant is a combination of constants from Charles's law, Boyle's law, Gay-Lussac's law and Avogadro's law. It is the physical constant featured in many fundamental equations such as ideal gas law, Arrhenius equation, and Nernst equation.
Complete step by step answer:
The ideal gas constant is a universal constant that we use to qualify the relationship between the properties of a gas. The constant K that we typically use relates pressure in atmosphere volume in litres and temperature in Kelvin. In this can it has the value and units of
Also, the ideal gas law is: pV = nRT, where n is the number of moles, and R is universal gas constant. The value of R depends on the units involved, but is usually stated with S.I. units as: R = 8.314 J/mol·K (also R = 8.314 Joules/Kelvin.)
It is crucial to match your units of Pressure, Volume, number of mole, and Temperature with the units of R. If you use the first value of R, which is 0.082057 L atm mol-1K-1, your unit for pressure must be atm, for volume must be liter, for temperature must be Kelvin.
Note:
The gas constant constant is a combination of constants from Charles's law, Boyle's law, Gay-Lussac's law and Avogadro's law. It is the physical constant featured in many fundamental equations such as ideal gas law, Arrhenius equation, and Nernst equation.
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