Which gas law states that the volume of a gas is directly proportional to its temperature at constant pressure?
A
Boyle's law
B
Charles's law
C
Gay-Lussac's law
D
Avogadro's law
Correct Answer: Option B — Charles's law
Explanation:
Charles's law states that at constant pressure the volume of a gas is directly proportional to its absolute temperature meaning gas expands when heated and contracts when cooled.