During the evaporation process,the heat is:

$A$ rubber band can change its shape on stretching. Will you classify it as a solid or not? Justify your answer.

Which property of gas is used in supplying oxygen cylinders to hospitals?

In which of the following conditions,the distance between the molecules of hydrogen gas would increase?
$(i)$ Increasing pressure on hydrogen contained in a closed container
$(ii)$ Some hydrogen gas leaking out of the container
$(iii)$ Increasing the volume of the container of hydrogen gas
$(iv)$ Adding more hydrogen gas to the container without increasing the volume of the container

Name the factors on which evaporation depends.

Give a reason why gas exerts pressure on the walls of the container.