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Ideal Gas Equation

If the neon g...

Question

If the neon gas in the vessel is replaced with an equal molar quantity of helium gas, which of the following will be changed?

A

Pressure

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B

Temperature

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C

Density

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D

Pressure and temperature

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E

Temperature and density

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Solution

The correct option is B Density
Pressure and temperature will not be changed as long as the number of moles of gas in the vessel doesn't change. The density of the gas will decrease because equal numbers of moles of helium and neon will have different masses, and density is the measure of mass per unit volume.

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