Final answer:
According to Boyle's Law, when the volume is halved, the pressure doubles. For an E cylinder tank commonly filled to 2000 PSI, the pressure would be 1000 PSI at half capacity.
Step-by-step explanation:
According to Boyle's Law, the relationship between the pressure and volume of an ideal gas at constant temperature is expressed by the equation P1V1 = P2V2. In the context of a medical gas supply in an E cylinder tank, if the pressure doubles when the volume is halved, this principle applies.
Considering a common filling pressure of around 2000 PSI for a full E cylinder tank, when the tank reaches half its capacity, the pressure gauge would read approximately 1000 PSI. This phenomenon illustrates the inverse proportionality between pressure and volume, a fundamental concept in gas physics.
Boyle's Law provides a theoretical framework for understanding the dynamic changes in pressure and volume as a gas is consumed from the cylinder, offering valuable insights for medical gas management and ensuring a reliable supply in healthcare settings.