NEET Physics Ideal Gas Equation MCQ Question
An ideal gas is contained in a vessel at temperature T and pressure P. If the number of molecules in the gas is doubled while keeping the temperature constant, what happens to the pressure of the gas?
Pressure becomes 2P
Pressure remains P
Pressure becomes P/2
Pressure becomes 4P
Correct Answer
Detailed Explanation
According to the ideal gas equation, PV = Nk_B T. If the number of molecules N is doubled and temperature T is constant, the pressure P must also double to maintain the equation.
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