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Chapters
2: Optics
▶ 3: Thermal Physics
4: Electricity
5: Acoustics
6: Nuclear Physics
7: Atoms and Molecules
8: Periodic Classification of Elements
9: Solutions
10: Types of Chemical Reactions
11: Carbon and its Compounds
12: Plant Anatomy and Plant Physiology
13: Structural Organisation of Animals
14: Transportation in Plants and Circulation in Animals
15: Nervous System
16: Plant and Animal Hormones
17: Reproduction in Plants and Animals
18: Genetics
19: Origin and Evolution of Life
20: Breeding and Biotechnology
21: Health and Diseases
22: Environmental Management
23: Visual Communication
![Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board chapter 3 - Thermal Physics - Shaalaa.com](/images/science-english-class-10-sslc-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board chapter 3 - Thermal Physics")
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Solutions for Chapter 3: Thermal Physics
Below listed, you can find solutions for Chapter 3 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Science [English] Class 10 SSLC TN Board.
Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board 3 Thermal Physics Evaluation [Pages 39 - 40]
Choose the correct answer
The value of universal gas constant
3.81 Jmol–1 K–1
8.03 Jmol–1 K–1
1.38 Jmol–1 K–1
8.31 Jmol–1 K–1
If a substance is heated or cooled, the change in mass of that substance is
positive
negative
zero
none of the above
If a substance is heated or cooled, the linear expansion occurs along the axis of
X or –X
Y or –Y
both (a) and (b)
(a) or (b)
Temperature is the average ______ of the molecules of a substance.
difference in K.E and P.E
sum of P.E and K.E
difference in T.E and P.E
difference in K.E and T.E
In the Given diagram, the possible direction of heat energy transformation is
A ← B, A ← C, B ← C
A → B, A → C, B → C
A → B, A ← C, B → C
A ← B, A → C, B ← C
Fill in the blanks
The value of Avogadro number _____
The temperature and heat are ______ quantities.
One calorie is the amount of heat energy required to raise the temperature of _______ of water through ______.
According to Boyle’s law, the shape of the graph between pressure and reciprocal of volume is _______.
State whether the following statements are true or false, if false explain why?
For a given heat in liquid, the apparent expansion is more than that of real expansion.
True
False
Thermal energy always flows from a system at higher temperature to a system at lower temperature.
True
False
According to Charles’s law, at constant pressure, the temperature is inversely proportional to volume.
True
False
Match the items in column-I to the items in column-II
| Column-I | Column-II | ||
| 1. | Linear expansion | (a) | change in volume |
| 2. | Superficial expansion | (b) | hot body to cold body |
| 3. | Cubical expansion | (c) | 1.381 X 10-23 JK-1 |
| 4. | Cubical expansion | (d) | change in length |
| 5. | Boltzmann constant | (e) | change in area |
Assertion and reason type questions
- Assertion: There is no effects on the other ends when one end of the rod is only heated.
- Reason: Heat always flows from a region of lower temperature to the higher temperature of the rod.
Both the assertion and the reason are true and the reason is the correct explanation of the assertion.
Both the assertion and the reason are true but the reason is not the correct explanation of the assertion.
Assertion is true but the reason is false.
Assertion is false but the reason is true.
- Assertion: Gas is highly compressible than solid and liquid
- Reason: Interatomic or intermolecular distance in the gas is comparably high.
Both the assertion and the reason are true and the reason is the correct explanation of the assertion.
Both the assertion and the reason are true but the reason is not the correct explanation of the assertion.
Assertion is true but the reason is false.
Assertion is false but the reason is true.
Answer in briefly
Define one calorie.
Distinguish between linear, arial, and superficial expansion.
What is co-efficient of cubical expansion?
State Boyle’s law
State-the law of volume
Distinguish between ideal gas and real gas.
What is the co-efficient of real expansion?
What is co-efficient of apparant expansion?
Numerical problems
Find the final temperature of a copper rod. Whose area of cross-section changes from 10 m2 to 11 m2 due to heating. The copper rod is initially kept at 90K. (Coefficient of superficial expansion is 0.0021 /K)
Calculate the coefficient of cubical expansion of a zinc bar. Whose volume is increased 0.25 m3 from 0.3 m3 due to the change in its temperature of 50K?
Answer in detail
Derive the ideal gas equation.
Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.
HOT question
If you keep ice at 0° C and water at 0° C in either of your hands, in which hand you will feel more chillness? Why?
Solutions for 3: Thermal Physics
Samacheer Kalvi solutions for Science [English] Class 10 SSLC TN Board chapter 3 - Thermal Physics
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Concepts covered in Science [English] Class 10 SSLC TN Board chapter 3 Thermal Physics are The Temperature and a Thermometer, Heat Energy (Thermal Energy), Heat and Its Unit, Scales of Thermometers, Flow of Heat, Transfer of Heat, Expansion of Substances (Thermal Expansion), Expansion of Solids, Expansion of Liquids, Expansion of Gases, Fundamental Laws of Gases, Pressure and Volume Relationship or Bolye's Law, Temperature - Volume Relationship or Charles's Law, Avogadro’s Law, Gases and Its Characteristics, Classification of Gases: Real Gases and Ideal Gases, Gas Equation, Heat Energy (Thermal Energy).
Using Samacheer Kalvi Science [English] Class 10 SSLC TN Board solutions Thermal Physics exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Science [English] Class 10 SSLC TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.
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