Thermodynamic processes: probably easy question

[hootie]

Homework Statement

I'm probably over thinking this question.

An ideal gas is placed in a thin walled aluminum cylinder and slowly compressed to 25% of its original volume. The process is best described as adiabatic, isothermal, isochoric, or isobaric?

Homework Equations

none

The Attempt at a Solution

I know the difference between the different processes. I'm just not sure how the thin walled aluminum container adds to the problem or if it does. In similar problems, a thick walled aluminum container represented constant volume.

Obviously the answer is not isochoric since the volume changes. I don't think it is adiabatic because the process happens slowly.

That leaves isothermal and isobaric. I know isothermal must happen slowly enough so thermal equilibrium is maintained. (This is what I suspect is the answer).

How would a thin walled aluminum container affect pressure?

 

[Redbelly98]

Welcome to Physics Forums.

Perhaps the wall thickness could affect the insulating ability of the container.

Hmmm, if you are basically deciding between isothermal and isobaric, then think about this: if it's isobaric, then what happens to the temperature of the gas upon compression in order to keep the pressure constant? Is it reasonable for this to happen?