Topic 1: Introduction to Thermal Properties of Matter

Introduction to Thermal Properties of Matter

The thermal properties of matter describe how materials respond to changes in temperature and how they absorb, transfer, and release heat.

Heat and temperature are related but different concepts. Temperature indicates the degree of hotness of a body, while heat is a form of energy transferred due to temperature difference.

Thermal Behaviour of Matter

When heat is supplied to a body, it may cause:

  • Increase in temperature
  • Expansion of the body
  • Change of state (solid, liquid, gas)

Examples from Daily Life

  • Expansion of railway tracks in summer
  • Heating of water on a stove
  • Melting of ice

Importance of This Chapter

  • Explains effects of heat on matter
  • Used in designing machines and structures
  • Important for CET numericals and MCQs

Main Topics Covered in This Chapter

  • Heat and temperature
  • Thermal expansion
  • Specific heat capacity
  • Calorimetry
  • Change of state
Q1. Thermal properties of matter deal with:
A) Motion of bodies
B) Electrical behaviour
C) Effect of heat on matter
D) Magnetic behaviour

Answer: C


Q2. Temperature is a measure of:
A) Heat energy
B) Degree of hotness
C) Internal energy
D) Heat capacity

Answer: B


Q3. Heat is:
A) A substance
B) A form of energy
C) A force
D) A wave

Answer: B


Q4. When heat is supplied to a body, it may cause:
A) Only expansion
B) Only change in colour
C) Increase in temperature or change of state
D) Decrease in mass

Answer: C


Q5. Which of the following is an effect of heat?
A) Magnetic attraction
B) Expansion of solids
C) Electric current
D) Sound production

Answer: B

Chapter 7: Thermal Properties of Matter

Topic 1: Introduction – Quick Revision

1. Thermal Properties

Study of behaviour of matter due to heat and temperature.

2. Heat

A form of energy transferred due to temperature difference.

3. Temperature

Measure of degree of hotness of a body.

4. Effects of Heat

  • Rise in temperature
  • Thermal expansion
  • Change of state

Exam Focus (MHT-CET)

Direct MCQs are asked on difference between heat and temperature and basic effects of heat.


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