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Class 11
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Physics
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Thermal Properties of Matter
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Change of State
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Melting and Boiling
Melting and Boiling
4 Mins
Physics
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NEXT VIDEOS
Sublimation
3 mins
Heating Curve of Conversion of Ice to Steam
12 mins
Latent Heat
6 mins
Problems based on latent heat of fusion and vaporization
14 mins
Conduction
5 mins
REVISE WITH CONCEPTS
Basic Knowledge of Change of State
Example
Definitions
Formulaes
Advanced Knowledge of Change of State
Example
Definitions
Formulaes
Melting and Freezing
Example
Definitions
Formulaes
Change in state of matter and Particle Theory
Example
Definitions
Formulaes
Understanding Melting and Boiling
Example
Definitions
Formulaes
Change of State due to Heating
Example
Definitions
Formulaes
View more
QUICK SUMMARY WITH STORIES
Change of state
2 mins read
Heating Curve of Conversion of Ice to Steam
3 mins read
Sublimation
3 mins read
States of matter - 2
3 mins read
Important Questions
When
0
.
1
5
k
g
of ice at
0
o
C
is mixed with
0
.
3
0
k
g
of water at
5
0
o
C
in a container, the resulting temperature is
6
.
7
o
C
. Calculate latent heat of melting of ice.
(Specific heat of water is
4
.
1
8
6
×
1
0
3
J
K
g
−
1
).
Hard
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>
In a pressure cooker the cooking is fast because.
Easy
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>
Calculate the heat required to convert
3
k
g
of ice at
−
1
2
o
C
kept in a calorimeter to steam at
1
0
0
o
at atmospheric pressure. (Given: specific heat of ice
=
2
.
1
0
0
×
1
0
5
J
k
g
−
1
K
−
1
, specific heat of water
=
4
.
1
8
6
×
1
0
6
J
k
g
−
1
, latent heat of fusion of ice
=
3
.
3
5
×
1
0
5
J
k
g
−
1
and latent heat of steam
=
2
.
2
5
6
×
1
0
6
J
k
g
−
1
) .
Hard
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>
Latent heat of fusion of ice is:
Easy
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>
Define latent heat of vaporization.
Easy
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>
How much heat energy is gained when 5 kg of water at
2
0
∘
C
is brought to its boiling point?
Medium
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>
What is the effect of increase in pressure on the boiling point of a liquid ?
Easy
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>
You are provided with a mixture of naphthalene and ammonium chloride by your teacher. Suggest an activity to separate them with well labelled diagram.
Medium
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>
Give a reason for the following observations:
(
a
)
Naphthalene balls disappear with time without leaving any solid.
(
b
)
We can get the smell of perfumes sitting several metres away.
Medium
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>
The average thermal energy for a mono-atomic gas is : (
k
B
is Boltzmann constant and
T
, absolute temperature)
Medium
NEET
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>