Definition of Universal Gas Constant



The universal gas constant, also named as the molar gas constant is represented by the symbol of R and it is stated as the fundamental physical constant that arose during the formulation of the general gas law. The universal gas constant for an ideal gas is equal to the product of volume and the pressure of the gas divided by the absolute temperature.

 


When any one of these three (P, V, T) is changed, the other two have to adjust themselves so that the expression (PV/T) remains constant. The value assigned to the universal gas constant is 8.314 JK-1mol-1.

 

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