Solving Pressure Problem for Interstellar Hydrogen Gas

[qspartan570]

Homework Statement

Clouds of interstellar hydrogen gas have densities of up to 1.0 X 10^10 atoms/m^3 and temperatures of up to 1.0 X 10^4 K. What is the pressure in such a cloud?

Homework Equations

Ideal-Gas Law: pV=nRT

The Attempt at a Solution

I don't know how to find the volume or number of moles for the equation.

Please help.

 

[gneill]

Homework Statement

Clouds of interstellar hydrogen gas have densities of up to 1.0 X 10^10 atoms/m^3 and temperatures of up to 1.0 X 10^4 K. What is the pressure in such a cloud?

Homework Equations

Ideal-Gas Law: pV=nRT

The Attempt at a Solution

I don't know how to find the volume or number of moles for the equation.

Please help.

Within the cloud is there anything to distinguish one sample volume from another?

 

[qspartan570]

Within the cloud is there anything to distinguish one sample volume from another?

I don't really know.

 

[gneill]

I don't really know.

Is there anything in the question that would suggest that anything but a representative sample is to be considered?

 

[qspartan570]

Is there anything in the question that would suggest that anything but a representative sample is to be considered?

No there is not anything within the question other than what is stated above.

 

[gneill]

No there is not anything within the question other than what is stated above.

So any sample of the cloud will do, right? What would be a convenient size of sample?