NEET Physics Ideal Gas Equation MCQ Question
Which of the following statements about the ideal gas equation is correct?
An ideal gas behaves perfectly at all temperatures and pressures.
The mass of 22.4 litres of any gas is equal to its molecular weight in grams at standard temperature and pressure.
The ideal gas equation can be written as PV = μRT, where μ is the number of molecules.
In an ideal gas, the individual gas molecules have significant intermolecular forces.
Correct Answer
Detailed Explanation
Statement B is correct because at standard temperature and pressure (273 K and 1 atm), the mass of 22.4 litres of any gas equals its molecular weight in grams. Statement A is incorrect as no real gas behaves ideally at all conditions; Statement C misstates μ, which represents molar mass, not the number of molecules; Statement D contradicts the ideal gas assumption of negligible intermolecular forces.
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