Question

When an inflated tyre bursts, air escaping out will

• A. get heated up
• B. be cooled
• C. not undergo any change in its temeperature
• D. be liquified

Answer 1

Answer: (B)

be cooled

The correct answer is option(B).

The air inside the tube of a vehicle is under high pressure. When a puncture occurs to the tyre, air inside comes out from that high pressure to outside environment which is at low pressure. In this process, it has to travel through a small hole.

According to the principle of Joule-Thomson effect. This says that when a gas at high pressure moves to an area of low pressure via a small hole, the gas cools down.