The value of ideal gas constant in dm³.torr. K⁻¹.mol⁻¹ is:
Correct answer: D. 62.364
- A. 0.0821
- B. 1.98722
- C. 8.3143
- D. 62.364
Explanation
The gas constant R is 62.364 dm3 torr per K per mol, since 0.0821 dm3 atm per K per mol multiplied by 760 torr per atm gives about 62.4. 0.0821 is the value in atm, 8.3143 is in joules, and 1.987 is in calories.
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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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