Thermal equilibrium between two or more bodies exists, when they are brought together, there is no change in ______.
Understanding Thermal Equilibrium
Thermal equilibrium between two or more bodies means that when they are brought together, there is no net flow of heat energy between them. This signifies a stable state regarding heat exchange.
Condition for Thermal Equilibrium
The primary condition required for thermal equilibrium is that all the bodies involved must have reached the same temperature.
- When temperatures are equal, the thermal energy distribution is uniform, and the rate of heat transfer from one body to another is exactly balanced by the rate of heat transfer in the opposite direction.
- This state implies no spontaneous change in the internal energy of the bodies due to heat transfer.
Key Factor: Temperature
While density and pressure are physical properties of substances, they are not the direct determinants of thermal equilibrium. Heat transfer is fundamentally driven by differences in temperature. Consequently, the absence of any change in heat content between bodies occurs only when their temperatures are identical.
Important Questions from Zeroth Law of Thermodynamics
A thermometer works on the principle of
As per the Tenth General Conference on Weights and Measures in 1954, the reference point temperature chosen for the Kelvin scale is ______.
Calculate the temperature in Kelvin if the room thermometer measured the temperature to be 25°C.
A refrigerator works on principles derived from which of the following laws of thermodynamics?
The law of thermodynamics which is related to temperature measurement and thermal equilibrium is _______.
