Q:

A statement of Boyle’s law is ‘the volume of a fi xed amount of gas is inversely proportional to the pressure of the gas, as long as temperature does not change’. This means that

waelhammad
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2022-10-19
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A statement of Boyle’s law is ‘the volume of a fi xed amount of gas is inversely proportional to the pressure of the gas, as long as temperature does not change’. This means that

  1. A balloon would expand to a larger volume in a hyperbaric chamber.
  2. The air pressure in the lungs would decrease if the diaphragm is contracted.
  3. The pressure inside a gas cylinder remains constant while some gas is let out, because the volume of the cylinder has not changed.
  4. If the lungs could expand to twice their volume, they would contain air at twice the pressure.
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waelhammad
2022-10-19
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B: Contracting the diaphragm will increase the volume of the chest and lungs above the diaphragm. As volume has increased, the pressure will decrease. Choice C is wrong as the amount of gas has changed (it is not fi xed).  

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