In dm3 atm K-1mol-1the numerical value of general gas constant R is:
Correct answer: C. 0.0821
- A. 1.989
- B. 8.314
- C. 0.0821
- D. 62400
Explanation
At STP, following are values of R in different units 0.0821 atm dm3 K-1 mol -1 8.31 Nm K-1 mol-1 8.31 J K-1 mol-1 7.989 cal K-1 mol-1
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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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