The ideal gas equation is
Correct answer: A. PV equals nRT
- A. PV equals nRT
- B. PV equals nR divided by T
- C. P divided by V equals nRT
- D. PVT equals nR
Explanation
The equation combines Boyle's, Charles's and Avogadro's laws into one relation, with R the universal gas constant at 8.314 J per mole per kelvin. Every quantity must be in consistent units, and the temperature must always be absolute. Rearranging it gives the density and molar mass of a gas from measurable quantities.
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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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