A Cylinder Contains Oxygen Gas at a Temperature of 7ºC

question 74

Multiple Choice

A cylinder contains oxygen gas at a temperature of 7ºC and a pressure of 15 atm in a volume of 100 L.A fitted piston is lowered into the cylinder,decreasing the volume occupied by the gas to 80 L and raising the temperature to 40ºC.The gas pressure is now approximately

• A)3040 atm
• B)595 atm
• C)108 atm
• D)21 atm
• E)17 atm

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Definitions:

Detonator

A device used to trigger an explosion in dynamite and other high explosives, typically initiating a larger, secondary explosive charge.

Lower Explosion Limit (LEL)

The lowest concentration of a particular gas or vapor in air that can produce a flash of fire in presence of an ignition source.

Propagate

To reproduce, spread, or increase in number, often used in the context of plants (via seeds or cuttings) and ideas or information.

Upper Explosion Limit (UEL)

The highest concentration of vapor in air above which propagation of flame does not occur on contact with a source of ignition.