Advertisements
Advertisements
प्रश्न
One litre of water has 6.02 × 1026 molecules. Estimate the size of a molecule.
Advertisements
उत्तर
The size of a particle (or molecule of matter is very small. 1 litre of water has 6.02 × 1026molecules, so the volume of a particle of water is
`(10^-3"m"^3)/(6.0 × 10^26)` = 1.6 × `10^-30 "m" ^3`.
Thus the diameter of a water molecule is nearly 1.27 × 10−9 metre.
APPEARS IN
संबंधित प्रश्न
Name the terms for the process due to which a solid directly changes into its vapours.
State the general properties of a solid.
Name the phenomenon which causes the Disappearance of camphor is
Select the correct alternative
The inter-molecular forces are strongest in
Define Element.
Give reason :
A gas fills up the space available to it.
The intermolecular force is _______ in the particles of solid.
Identify the odd term out and explain.
Give two examples.
Liquid element
Give a reason for the following:
Globules of mercury kept in a petri dish, which is shaken slowly, come together forming a big globule.
