What is an everyday example in which you observe a gas expanding when heated.

Example of gas expanding when heated. Expansion joints like joint of two railway tracks. The gas gauge on a car. If it is in say a balloon then the greater pressure pushes outward on the balloon and makes it expand.

If the cars tank is filled and the vehicle left to sit in the sunin other words if the car is not driven after the tank is filledthe gasoline might very well expand. Warming a sample of helium from 0C to 100C for example increases its volume by about one third. We make use of the expansion of a liquid in the most common type of thermometer.

This can be harnessed to perform useful work for example in a cylinder or piston inside a cars engine. Gasoline starts out at the temperature of the ground under the gas station which is cooler than the air temperature above. Cracks in the road when the road expands on heating.

Both gasoline and steel tank expand as they warm to air temperature but gasoline expands. A heated gas doesnt expand if it is in say a steel container. When a gas expands due to being heated as for Charles Law it exerts an outwards force on its container.

The air in the flask expands and moves out of the flask through the tube into the beaker containing water. Here are five examples. Air is composed of several different gases most notably nitrogen oxygen and carbon dioxide but the particular gas involved does not matter.

All three states of matter solid liquid and gas expand when heated. When air is heated it either increases in volume increases in pressure or both depending on the conditions. Differences in the thermal expansion of materials can lead to interesting effects at the gas station.