What is the equation for Boyle's Law?

The equation for Boyle's Law describes the relationship between the pressure and volume of a gas at constant temperature. Boyle's Law states that the product of the pressure and volume of a given mass of gas is constant, provided the temperature remains unchanged. This is mathematically expressed as P1V1 = P2V2, which means that if the volume of a gas decreases, its pressure increases, as long as the temperature is constant, and vice versa.

This relationship is fundamental in understanding how gases behave under changing conditions. The constants in the equation represent the initial and final states of pressure and volume, providing a clear way to calculate one variable if the other is known.

The other options represent different gas laws. The first choice (P × V = k) is a general form that describes the relationship but lacks the context of initial and final states. The second choice (P/T = k) relates to Gay-Lussac's Law, which explores the relationship between pressure and temperature. The third choice (V/T = k) pertains to Charles's Law, which deals with the volume and temperature relationship. Each of these laws has its own specific applications, but only the equation P1V1 = P2V2 represents Boyle's Law accurately.