Temperature measurement is an important part of thermodynamics. It helps us understand how energy moves around. Here are some key ideas:

1. Thermodynamic Laws:

   • Zeroth Law: This law explains thermal equilibrium. If object A is at the same temperature as object B, and object B is at the same temperature as object C, then object A is also at the same temperature as object C.
   • First Law: This law focuses on changes in internal energy. It tells us that temperature affects how heat (Q) is transferred. The formula is: ΔU = Q - W, where ΔU is the change in energy, Q is heat added, and W is work done.

2. Temperature Scales:

   • Celsius (°C): In this scale, water freezes at 0°C and boils at 100°C.
   • Kelvin (K): This is an absolute scale, which means it starts at 0 K (absolute zero). At this point, nothing moves at all.
   • Fahrenheit (°F): Here, the freezing point of salty water is 0°F and that of pure water is 32°F.

Knowing these scales and laws is very important for studying thermodynamics accurately.