Ageiger–muller tube is a type of gas‑filled radiation detector. it can detect particles like x‑rays, alpha particles, and beta rays (electrons). this is useful in quantizing the activity of a radioactive source or determining if an area containing radioactive material is safe to enter. assuming that you have of gas, if a geiger counter is filled with of argon gas at room temperature , what is the density, of the gas in this geiger tube?

Explanation:

We will drive the epression for density

Taking he assumption that argon is an ideal gas so the expression will be:

Where:

P is the pressure of gas

V is the volume of gas

n is the number of moles

R is universal gas constant

T is the temperature

So

Where m is the mass and rho is the density of gas

where m is the mass and M is the molar mass of gas

Put V and n in above equation:

So the above expression will become:

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