What causes the pressure inside oxygen tanks to change as they are filled?

A. The temperature of the gas changes.
B. The volume of the container changes.
C. The pressure outside the tanks changes.
D. The number of gas molecules changes.

Oxygen tanks are those in which the oxygen is filled in the liquid form by giving pressure to it with the help of a piston due to more pressure the molecules of oxygen become close.

As the molecule of the oxygen gas is closed to each other they are condensed and changes their state from a gaseous state to a liquid state.

By providing more pressure to the oxygen tank the gas molecules increases due to the decrease in the surface of the tank and molecules condense to liquid form.

Therefore, The number of gas molecules changes as the pressure inside oxygen tanks changes as they are filled. option D is correct.

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What causes the pressure inside oxygen tanks to change as they are filled? A. The temperature of the gas changes. B. The volume of the container changes. C. The pressure outside the tanks changes. D. The number of gas molecules changes.

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What are oxygen tanks?

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What causes the pressure inside oxygen tanks to change as they are filled?

A. The temperature of the gas changes.
B. The volume of the container changes.
C. The pressure outside the tanks changes.
D. The number of gas molecules changes.