Science Buddies: "Ask an Expert"

A smooth flexible tube 1mm in diameter and 1 foot in length holds air at normal / atmospheric pressure (14.7psi).
the tube is open at one end. the other end is connected to a tank by an open valve.
the tube is peristaltically compressed so all the air in the tube is forced into the tank.
the tank is dimensioned so that the air in the tank is pressurised to twice normal pressure (29.4psi)
the valve to the tank is now closed trapping the air in the tank .
the tube is allowed to naturally reflates to atmospheric pressure.
the valve to the tank is now opened:
Clearly the pressure differential between the tank and the tube results in air within the tank venting into the tube and out the open end - until the pressure in the tube and the tank stabilise at normal pressure.
MY QUESTION
Clearly that process is fast. But how fast?
I would like to know how much time that takes.
If anyone can help me with this I would be very grateful.
Thanks.

Hi adamwalker,

This forum is intended for students, parents, and teachers working on K-12 science projects. If your question is related to a science project, please post some details such as your hypothesis, research question or experimental plan. If you are looking for help with homework or general science discussions there are other sites that should be able to answer your question.

A. Norman