Question 1

What is Boyle's Law?

Accepted Answer

Boyle's Law states that for a fixed amount of gas at constant temperature, the pressure is inversely proportional to the volume. Mathematically: P₁V₁ = P₂V₂. If you compress a gas (decrease volume), the pressure increases.

Question 2

When does Boyle's Law apply?

Accepted Answer

Boyle's Law applies to ideal gases at constant temperature (isothermal process) with a fixed amount of gas. Real gases approximate this behavior at low pressures and high temperatures.

Question 3

What units should I use?

Accepted Answer

Any pressure and volume units work as long as you are consistent. P₁ and P₂ must use the same unit, and V₁ and V₂ must use the same unit. Common choices are atm with liters, or kPa with liters.

Question 4

What is the relationship between Boyle's Law and the Ideal Gas Law?

Accepted Answer

Boyle's Law is a special case of the Ideal Gas Law (PV = nRT). When n (moles) and T (temperature) are constant, PV = constant, which gives P₁V₁ = P₂V₂.

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