Heat
Effect of heat on Volume
Anomalous Expansion of Water
Specific Heat Capacity
Numerical
◙ The total kinectic energy of molecules present in matter is called heat.
It's SI unit is Joule & CGS unit Calorie(Cal).
A Calorie is the amount of heat used to raise the temperature of 1gm of water one degree celsius.
Do you Know?
One Calorie = 4 joules
1. Thermal Expansion:
2. Temperature and Volume Relationship:
3. Anomalous Expansion of Water:
4. Practical Implications:
The wired property of colling water is called anomalous expression of water.
The specific heat capacity (often referred to simply as specific heat) is the amount of heat energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius (°C) or 1 Kelvin (K).
Practical Example:
To understand how this property works in practice, consider heating water:
If you have 1 kilogram (1000 grams) of water and you want to increase its temperature by 1°C, the energy required would be:
𝑄=𝑚𝑐Δ𝑇Where:Q is the heat energy (in joules),m is the mass (in grams),c is the specific heat capacity,ΔT is the temperature change (in °C)
