Question

why does gas fills completely The vessel in which it is kept​

Answer 1

Gas is a state of matter which does not have any fixed shape or volume. That's why when it is kept in a vessel, it can fill it completely without leaving any space like solids and liquids do.

Answer 2

HIII.....

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HERE IS YOUR ANSWER:--------

THE GAS FILLS THE CONTAINER IN WHICH IT IS KEPT THIS BECAUSE THEIR MOLECULES ARE LESS TIGHTLY PACKED AND ARE ALSO HELD BY THE LESS FORCE OF ATTRACTION.

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