Question

Which of the following represents Gay Lussac’s law? I. (P)/(T) = constant II. P₁T₂ = P₂T₁ III. P₁V₁ = P₂V₂ Choose the correct option.

• A. I, II and III
• B. II and III
• C. I and III
• D. I and II

Hint:

Gay Lussac’s law connects pressure and temperature at constant volume.

Answer 1

The Correct Option is D

Step 1: Gay Lussac’s law: P ∝ T (V=constant)
Step 2: This gives relations I and II.
Step 3: Relation III is Boyle’s law.