EASY
Earn 100

Do solids have definite shape and fixed volume?

Important Questions on Matter in our Surroundings

HARD
The melting point of naphthalene is 80°C and the room temperature is 30°C. A sample of liquid naphthalene at 100°C is cooled down to the room temperature. Draw a temperature time graph to represent this cooling. In the graph, mark the region which corresponds to the freezing process.
MEDIUM
The correct order of compressibility is:
MEDIUM
If a gas expands at constant temperature it indicates that
EASY

Elaborate the full form of CNG.

 

EASY
Physical state of water at 0°C is
EASY
One gas mixes very easily with another gas. What is this property called? 
 
HARD
Tabulate the differences in the characteristics of states of matter. 
 
EASY

Why is it that the gases can be compressed easily but not the solids?

MEDIUM
A sponge gets compressed when we press it. Will you consider it solid? Give reason.
HARD
Comment upon the following: rigidity, compressibility, fluidity, filling a gas container, shape, kinetic energy and density of various states of matter.
MEDIUM

What is meant by change of state?

EASY
The arrangement of particles is less ordered in the _____ state.
MEDIUM
Why is it that gases are more compressible than liquids?
EASY

The property to flow is unique to fluids. Which of the following statements is correct?

EASY
Which of the following are the characteristics of a gaseous state?
MEDIUM

What is the fifth state of matter? Who discovered it?

EASY
Gases can be considered as fluids.
MEDIUM
Why do solids have a fixed volume and a definite shape?
EASY
The particles in a solid diffuse into one another.