Physics, asked by kyvalya777, 1 month ago

what is thermodynamics?
Thermodynamics 4 laws and explanation pls​

Answers

Answered by omichandorkar
1

Explanation:

Thermodynamics is the study of the relations between heat, work, temperature, and energy. The laws of thermodynamics describe how the energy in a system changes and whether the system can perform useful work on its surroundings.

Zeroth law of thermodynamics

It says when two thermodynamic systems are in thermal equilibrium with a third body then they are in thermal equilibrium with each other

Note that thermal equilibrium is that condition when there is no net flow of thermal energy between two.

The first law of thermodynamics

It simply states that the total energy of the universe is conserved and can not be created or destroyed but yes it can be converted from one form to another

For a cyclic process heat and work, transfers are numerically equal that is

Q=W

Q=Net heat supplied to the body

W=Net work done by the body

The second law of thermodynamics

To understand the second law of thermodynamics you must be clear with the entropy of the system, so basically, entropy is the state variable which is the measure of the unavailability of thermal energy per unit temperature to do any work. Now, according to the second law of thermodynamics, the change in entropy delta S is equal to the heat transfer delta Q divided by the temperature T.

Third law of thermodynamics

As temperature approaches absolute zero, the entropy of a system approaches a constant minimum.

Note that these above are just definitions which only gives hints about each law if you really want depth knowledge then you need to observe nature, surrounding and the universe.

In last I would say if you really want to understand anything in physics include that thing in your daily life, think about it and try to relate with the surrounding.

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