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Thermal Properties of Matter PPT Physics Class 11

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FAQs on Thermal Properties of Matter PPT Physics Class 11

1. What are the different types of thermal properties of matter?
Ans. The different types of thermal properties of matter include thermal conductivity, specific heat capacity, coefficient of linear expansion, coefficient of volume expansion, and latent heat.
2. How can thermal conductivity be defined?
Ans. Thermal conductivity is a measure of a material's ability to conduct heat. It is defined as the amount of heat that flows through a unit area of a material in a unit time when a temperature difference of one degree Celsius is applied across the material.
3. What is specific heat capacity and how is it measured?
Ans. Specific heat capacity is the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree Celsius. It is measured using the formula: specific heat capacity = heat energy supplied / (mass × change in temperature).
4. How does the coefficient of linear expansion affect the dimensions of an object?
Ans. The coefficient of linear expansion determines how much a material expands or contracts in length when its temperature changes. It is used to calculate the change in length of an object using the formula: change in length = original length × coefficient of linear expansion × change in temperature.
5. What is latent heat and how is it related to phase changes?
Ans. Latent heat is the energy absorbed or released during a phase change of a substance without a change in temperature. It is related to phase changes because it represents the energy required to break or form intermolecular forces between particles during a change in state, such as melting or vaporization.
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