Which equation represents Boyle's Law relating pressure and volume for a gas?

Which equation represents Boyle's Law relating pressure and volume for a gas?

• A. F = m a
• B. P = F/A
• C. P1 x V1 = P2 x V2
• D. E = mv^2 /2

Answer: (C)

Boyle's law shows that for a fixed amount of gas at constant temperature, pressure and volume are inversely related, so their product stays the same. In two states of the same gas, the relationship is written as P1 × V1 = P2 × V2, meaning if volume decreases, pressure increases proportionally, and if volume increases, pressure decreases. This equation expresses the idea that the product PV remains constant when temperature and the amount of gas are unchanged. The other concepts aren’t about how pressure relates to volume. One describes force and acceleration, another defines pressure as force per area, and the last is kinetic energy.

Boyle's law shows that for a fixed amount of gas at constant temperature, pressure and volume are inversely related, so their product stays the same. In two states of the same gas, the relationship is written as P1 × V1 = P2 × V2, meaning if volume decreases, pressure increases proportionally, and if volume increases, pressure decreases. This equation expresses the idea that the product PV remains constant when temperature and the amount of gas are unchanged.

The other concepts aren’t about how pressure relates to volume. One describes force and acceleration, another defines pressure as force per area, and the last is kinetic energy.