A certain volume of nitrogen contains 3000 molecules at $30^{\circ} C$. How many molecules will it contain if it is heated to $100^{\circ} C$ and the pressure remains the same?

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A certain volume of nitrogen contains 3000 molecules at $30^{\circ} C$. How many molecules will it contain if it is heated to $100^{\circ} C$ and the pressure remains the same?

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