Boyle's law can best be defined as _________.

Correct Answer: Option A — the volume of an enclosed gas varies inversely with the applied pressure, provided the temperature remains constant

Boyle's Law states that for a fixed mass of an ideal gas at a constant temperature, the product of pressure and volume is constant. Consequently, if the pressure of the gas increases, its volume must decrease proportionally, a fundamental principle in gas turbine compressor thermodynamics.