The relationship PV = constant for a fixed mass of gas at constant temperature is known as which gas law?

The relationship PV = constant for a fixed mass of gas at constant temperature is known as which gas law?

• A. Graham's law
• B. Bernoulli's law
• C. Boyle's law
• D. Charles' law

Answer: (C)

This is about how pressure and volume relate for a fixed amount of gas when temperature stays the same. When P and V are linked so that their product P×V stays constant, the gas follows Boyle's law: as volume increases, pressure decreases proportionally, and vice versa, for a given mass at constant temperature. The other laws describe different conditions: Graham's law deals with diffusion/effusion rates related to molar mass, Bernoulli's principle relates fluid speed to pressure in moving streams, and Charles' law describes how volume changes with temperature at constant pressure. So the described PV = constant relationship for fixed mass and constant temperature is Boyle's law.

This is about how pressure and volume relate for a fixed amount of gas when temperature stays the same. When P and V are linked so that their product P×V stays constant, the gas follows Boyle's law: as volume increases, pressure decreases proportionally, and vice versa, for a given mass at constant temperature. The other laws describe different conditions: Graham's law deals with diffusion/effusion rates related to molar mass, Bernoulli's principle relates fluid speed to pressure in moving streams, and Charles' law describes how volume changes with temperature at constant pressure. So the described PV = constant relationship for fixed mass and constant temperature is Boyle's law.