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Value Of R In Gas Constant: In physics, the gas constant is defined as the product of pressure and volume. It is denoted by R and can be expressed as energy per temperature per increase per mole.
Value Of R in AT
- The value of gas constant at atm is constant. However, it can be expressed using various units.
- It is also known by the name of the ideal gas constant, universal gas constant or molar constant.
| Units | Value | Notes |
| Joules per mole per Kelvin (J/mol*K) | 8.3144598(48) | Most commonly used value. |
| Liters-atmosphere per mole per Kelvin (Latm/molK) | 0.08314 | Conversion factor: 8.314 J/molK/ 101.325 kPaL (molar gas constant) |
| Cubic meters per pascal per kelvin per mole (m^3Pa/molK) | 8.314 x 10^-3 | Conversion factor: 8.314 J/molK / (1 J/Pam^3) |
| Calories per mole per Kelvin (cal/mol*K) | 1.987 | Conversion factor: 4.184 J/cal |
| Kilojoules per mole per Kelvin (kJ/mol*K) | 8.314 | Simple conversion: 8.314 J/mol*K / 1000 J/kJ |
Gas Constant Formula
The formula for gas constant is:
PV = nRT
R= PV/nT
Here, p is the pressure of the ideal gas
V is the volume of an ideal gas
T is the temperature
N is the number of the ideal gas
In this article, students have learned all the important concepts regarding the gas constant.
Applications Of Gas Constant
Calculating Gas Properties
- Press, Volume, Temperature (PVT) Relationships: Knowing R allows us to calculate any of the four variables in an ideal gas system if other three things are known to us.
- It is important in various applications like designing gas cylinders and understanding weather patterns.
- The R constant can also be used to determine the density of an ideal gas at a specific temperature lije designing hot air balloons.
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