Question

Choose the correct option for arrangement in the order indicated for solids, liquids and gases:
i.Decreasing order – empty space between
ii.Increasing order – tendency to flow

$A.(i) Solid > Liquid > Gases (ii) Gases < Liquids < Solids$
$B.(i) Solid > Liquid > Gases (ii) Solids < Gases < Liquids$
$C.(i) Gases > Liquids > Solid (ii) Solid < Liquid < Gases$
$D.(i) Solids > Gases > Liquid (ii) Gases < Solids < Liquids$

Answer 1

Hint: The empty space between particles in each state of matter is related to how closely particles are packed together. As we know, solids are very tightly packed while gas particles are free to move around. The tendency to flow is the direct opposite of this, that is, it is related to how loosely particles are packed together.

Complete step by step answer:
We have to first analyze the properties of these three states that are described above.
The first property is the empty space between which is the space between the molecules in a state.
In solids the particles are tightly packed which gives the solids a rigid and definite shape. So, the empty space between molecules is very less.
Now in liquids the molecules are not that tightly packed, as in the solids, but there is some more space in between. This gives them a free movement property. The empty space between is less.
In gases the molecules are far from each other which makes the movement very free. Therefore, the empty space between is more.
Hence the decreasing order of this property is Gases>Liquids>Solid.
Moving on to the next property tendency to flow. This property determines which of these three states can move more freely and independently than the others.
Solids are very rigid and hard therefore they are not that free flowing at all.
Liquids contain molecules that are not that far from each other so they can move more freely than the solids.
In gases the molecules are very far apart from each other and that makes them the most freely moving state.
The increasing order of the tendency to flow is Solid < Liquid < Gases
Thus, the correct option would be the one having $(i) Gases > Liquids > Solid (ii) Solid < Liquid < Gases$
Therefore, the correct option is C.

Note:As solids have tightly packed molecules, they have the highest density while gases have the lowest density among solids, liquids and gases. As a result, solids generally have a definite shape and volume, while liquids take up the volume of the container they are placed in. Gases, on the other hand, have no fixed volume or shape, and can be compressed so that they occupy smaller volumes.
Also note that apart from these three basic states of matter, there are two other states: plasma state and Bose-Einstein condensate.