# Charles' Law

Chemistry Level 1

Definition: Charles' law is a special case of the ideal gas law where the pressure of a gas is constant. Charles' law states the volume is proportional to the absolute temperature of a gas at constant pressure.

Formula:
1) $$P/V =k$$
2) $$V_1/T_1 = V_2/T_2$$

Question: A 600 mL sample of nitrogen is heated from $$27^\circ\text{C}$$ to $$77^\circ\text{C}$$ at constant pressure. What is the final volume in mL?

×