Advertisements
Advertisements
Question
Describe a simple experiment to illustrate the existence of inter-molecular spacing.
Advertisements
Solution
Take 100 ml of water in a measuring cylinder. Add 20 grams of salt in the water gently and stir it well so as to dissolve the salt well in water. It is noticed that the level of water does not change. It shows that the particles of salt occupy spaces between the particles of water.
APPEARS IN
RELATED QUESTIONS
Define: Solid
How a liquid changes into its gaseous state ? Explain ?
Fill in the blank
_______ can flow.
The molecules of each substance are identical.
What are molecules?
Give reason :
A gas fills up the space available to it.
Differentiate between the following:
Atoms and molecules
Write a scientific reason.
Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
Give a reason for the following:
Globules of mercury kept in a petri dish, which is shaken slowly, come together forming a big globule.
Give a reason for the following:
A crystal of iodine on slow heating in a closed flask turns into vapours and fills the complete flask.
