The certain volume of a gas exerts on its walls some pressure at a particular temperature. It has been found that by reducing the volume of the gas to half of its original value the pressure becomes twice that of the initial value at a constant temperature. This happens because:

mass of the gas increases with pressure

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speed of the gas molecules decreases

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more number of gas molecules strikes the surface per second

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gas molecules attract each other

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Solution

The correct option is C more number of gas molecules strikes the surface per second
Certain volume of a gas exerts on its' walls some pressure at a particular temperature. It has been find that by reducing the volume of the gas to half of its' original value the pressure becomes twice that of the initial value at a constant temperature. This happens because- more number of gas molecules strikes the surface per second due to the reduce in volume at constant temperature.

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