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The value of the universal gas constant is:

Correct answer: B. 8.314 J/mol K

  • A. 8.314 Jmole K
  • B. 8.314 J/mol K
  • C. 8.314 Jmole K^−1
  • D. 3.148 J/moleK

Explanation

The value of the universal gas constant (R) is approximately 8.314 J/mol K8.314J/mol K. It is commonly used in thermodynamics to relate the amount of substance to temperature and pressure in the ideal gas law equation, PV=nRT.

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About Ideal Gas Equation

The ideal gas equation, PV = nRT, relates pressure, volume, amount and absolute temperature when gas particles are assumed to have negligible volume and no intermolecular forces. Applications include finding molar mass, density or an unknown gas variable, with careful use of Kelvin temperature and consistent units, and comparison with real-gas behaviour.

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