Question

Define temperature on the basis of zeroth law of thermodynamics..

Answer 1

Answer:

The physical quantity that determines whether or not a given system is in thermal equilibrium with another system is called temperature..

Temperature of a body is the measure of degree of hotness or coldbess.......

Answer 2

Answer

Thermal equilibrium

• It is defined as the point where two bodies or systems with different temperatures, are in contact with each other and end up with the same temperature after the occurrence of transfer of heat from one another.
• There is no net heat flow between the two bodies.

Zeroth law of thermodynamics

• If two bodies or systems are in thermal equilibrium with a third body or system, then those two are said to be in equilibrium with each other.
• Eg- If A is in thermal equilibrium with B, which is in thermal equilibrium with C, then A and C are in thermal equilibrium.
• The foundation of temperature is built on the zeroth law of thermodynamics.
• Since bodies will reach a thermal equilibrium state, we can use a device to measure the difference of physical quantities that changed.
• This device is known as a thermometer, used to tell the difference in quantities.
• Thus, the temperature is an indication of a thermal equilibrium state between a body and a device.