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Kinetic Theory

JEE Main level, single correct, medium

142 of 168

Question 142 of 168

The number of molecules in one litre of an ideal gas at $300K$ and $2$ atmospheric pressure with mean kinetic energy $2\times {10}^{-9}J$ per molecule is:

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Answer: (C) $1.5\times {10}^{11}$

KE=\dfrac{3}{2}kT

PV=\dfrac{N}{{N}_{A}}RT

N=\dfrac{PV}{kT}

=N=1.5\times {10}^{11}

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JEE Main Physics practice question on Kinetic Theory (Pressure and Energy of gas), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

The number of molecules in one litre of an ideal gas at 300K300K300K and 222 atmospheric pressure with mean kinetic energy 2×10−9J2\times {10}^{-9}J2×10−9J per molecule is:

JEE Main question paper PDF

More Physics practice

The number of molecules in one litre of an ideal gas at $300K$ and $2$ atmospheric pressure with mean kinetic energy $2\times {10}^{-9}J$ per molecule is: