Advertisements
Advertisements
Question
The mass per unit volume of a substance is called density.
(density = mass/volume).
Arrange the following in order of increasing density-
air, exhaust from chimneys, honey, water, chalk, cotton and iron.
Advertisements
Solution
In increasing order of density:
Air < Exhaust from chimney < Cotton < Water < Honey < Chalk < Iron
APPEARS IN
RELATED QUESTIONS
Tabulate the differences in the characteristics of states of matter.
Give reasons:
A gas exerts pressure on the walls of the container.
Give reasons:
We can easily move our hand in air, but to do the same through a solid block of wood, we need a karate expert.
Give a reason for the following observation.
We can get the smell of perfume sitting several metres away.
Explain why, diffusion occurs more quickly in a gas than in a liquid.
When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment :
A substance has neither a fixed shape nor a fixed volume. State whether it is a solid, a liquid or a gas.
Why do gases not have fixed shape?
Comment upon the following:-
compressibility
Which of the following is false for gases?
