Multiple choice

A football was inflated to a gauge pressure of 1 bar when the ambient temperature was 15°C. When the game started next day, the air temperature at the stadium was 5°C. Assume that the volume of the football remains constant at 2500 cm3.

Gauge pressure of air to which the ball must have been originally inflated so that it would equal 1 bar gauge at the stadium is

  1. 2.23 bar

  2. 1.94 bar

  3. 1.07 bar

  4. 1.00 bar

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation