Question

Why fountain pens leak at mountains

Answer 1

Fountain pens brought to higher altitudes from lower altitude regions contain air at high pressure (equal to that of the low altitude region it is brought from). Due to this difference in air pressure, the air inside the pen forces the ink to come out. Therefore , the pen leaks.


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Answer 2

The pressure at higher altitudes is comparatively less So,to equalize the pressure difference ink starts moving of the pen which has a realitively high pressure when this pen to take high altitude the pressure out side falls.T hus the air in the tube and exerts pressure and forces a ink out