Matter in our surroundings

This post contains Question Answer of chapter Matter in Our Surroundings including NCERT Exercise. 1. Which of these are matter: Chair, air, love, smell, hate, almonds, thought, cold, cold drink, smell of perfume? Sol: The following are matter: chair, air, almonds, cold drink, smell of perfume. 2. Give reasons for the following observation: The smell […]

Humidity is the amount of water vapour in the air. The humidity of air is defined as the amount of water vapour which is present in one unit volume of the air. It is measured in the units of gram per cubic meter. What is absolute humidity? The maximum limit of the water vapour which

In this post we will discuss about latent heat and its two forms. Let’s start with a question. Why does the temperature remain constant during melting and boiling even when heat is being supplied to a substance continuously? This is so because the heat supplied to the substance is used up in overcoming the intermolecular

In this article, you will find the answer of the question “can gas be liquefied by increasing pressure?” Liquefaction of gases is the process by which substances in their gaseous state are converted to the liquid state. Different physical states of matter differ in the space in between their particles. The gaseous state has very

There are three states of matter: Solid state Liquid state Gaseous state What are the properties of solids (First states of matter)? Solids possess the following properties: Solids are rigid and incompressible. Because in solids, the constituent particles are closely packed and there is virtually no space between the particles. So, solids cannot be compressed.

What makes the matter to exist in any one of three state of matter? Why should the properties of solids, liquids and gases be different? Before finding a solution for the above mentioned questions, let us recollect that: All matter is made up of very small particles. These particles may be atoms, ions or molecules.