SI unit is the International System of Units used for consistent measurement worldwide. It includes base units like meter for length kilogram for mass second for time and ampere for electric current. Derived units like Newton for force and joule for energy are based on these fundamental units.
Chapter 10 of Class 11 Physics focuses on the thermal properties of matter. It covers concepts such as temperature thermal expansion specific heat capacity and the laws governing heat transfer. The chapter explains how solids liquids and gases expand with temperature changes and explores various thermometric substances and temperature scales.
Specific heat is the quantity of heat necessary to raise the temperature of 1 unit mass of a substance by 1°C or 1 K.
Molar specific heat is the quantity of heat necessary to raise the temperature of 1 mole of a substance by 1°C or 1 K.
CGS units:
– Specific heat: cal/g°C
– Molar specific heat: cal/mol°C
SI units:
– Specific heat: J/kg·K
– Molar specific heat: J/mol·K
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