InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Hot air balloons float in air becauseof the low density of the air inside theballoon. Explain this with the help ofan appropriate gas law. |
|
Answer» According to Charles law, the volume is proportional to temperature at constant pressure. Now, if gas is heated up, it’s temperature rises hence, its volume also rises.in hot air balloon the air is heated, hence its volume increases so it’s density decreases. As we known that a fluid of less density floats on another object with less density, hence the hot air balloon gets heated up and rises up you know,The operation of a hot air balloon depends on Charles' Law, the Ideal Gas Law, and Archimedes' Principle. heliumballoondisplaces an amount ofair(just like the empty bottle displaces an amount of water). As long as the weight of the helium plus theballoonfabric is lighter than theairit displaces, theballoonwillfloat in the air. It turns out that helium is a lot lighter thanair. |
|