distracted
Mechanical
Can anyone tell me where I can get an equation that equates a balloons diameter with that of the internal pressure?
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Balloon diameter under pressure
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Cockroach,
Mass may or may not be constant, dependent upon the method used to vary the pressure; or more correctly the delta pressure.
We can change the delta P by changing the temperature, or changing the external pressure. In these cases, mass inside the balloon remains constant (assuming that the balloon is sealed).
However, from my youth I recall that a more common method to change the pressure inside a balloon is to connect it to a source of pressurized gas (commonly your lungs in a residential setting, but in commercial applications a tank of N2 or H2) and forcing gas into the balloon, thus adding mass.
Mass may or may not be constant, dependent upon the method used to vary the pressure; or more correctly the delta pressure.
We can change the delta P by changing the temperature, or changing the external pressure. In these cases, mass inside the balloon remains constant (assuming that the balloon is sealed).
However, from my youth I recall that a more common method to change the pressure inside a balloon is to connect it to a source of pressurized gas (commonly your lungs in a residential setting, but in commercial applications a tank of N2 or H2) and forcing gas into the balloon, thus adding mass.
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