Question Detail
Question
An automobile tire is filled to a gauge pressure of 225 kPa at 25°C. After driving, the temperature rises to 48°C. Assuming constant volume, what is the new pressure?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Convert to Kelvin: T₁=298 K, T₂=321 K. Using P₁/T₁ = P₂/T₂, P₂ = 225 × (321/298) ≈ 242 kPa.
Hint
Use Gay-Lussac’s law.