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
Write your observation and conclusion for the following:
Ice is kept at room temperature.
Why are liquids and gases called as fluids.
What are fluids ? Give two examples.
Write whether the following statement are true or false.
There is no difference between evaporation and boiling.
Write true or false for each statement. Rewrite the false statement correctly.
Solids and liquids can flow.
What is the approximate size of a molecule?
What is mass?
What is the relation between intermolecular space and intermolecular force?
Write true or false for the statement. Rewrite the false statement correctly.
The smallest part of an element capable of independent existence is called an atom.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
