Question
Give an example to show that gases expand on heating. Gases are kept in some vessels for measurement, still, why is there no apparent expansion of gases?
Answer
An air-filled balloon made of this rubber, when kept outside under the sun, is found to become larger in size and ultimately burst out. This shows that air on being heated expands in volume.
For the rise of temperature, the expansion of gas is very high as compared to the container. So the expansion of the vessel can be neglected in the case of gases and no apparent expansion in gases is considered.
