The ideal gas equation is PV = nRT the symbol n in SI unit represent:
Correct answer: A. The number of molecules in the gas
- A. The number of molecules in the gas
- B. Avogadro's number
- C. The number of kilo-moles
- D. The number of molecules per unit volume
Explanation
The ideal gas law can be written in terms of the number of molecules of gas: PV = nRT, where P is pressure, V is volume, T is temperature, n is number of molecules, and R is the general gas constant. PV = nRT, The pressure of a gas times its volume equals the number of moles of the gas times a constant (R) times the temperature of the gas. The ideal gas law is the final and most useful expression of the gas laws because it ties the amount of a gas (moles) to its pressure, volume and temperature.
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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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