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# Physics classes

In Physics classes, we are providing many types of courses for your requirement. You can easily learn in Mechanics, Thermodynamics, Fiber optics and Quantum mechanics for all branches in physics course. In Physics classes, we can teach according to the student requirement and all topics are very easily teach for student . If students regular way to learn all topics. It makes sure most beneficial of all physics examination.

This course are all topics explain in mechanism of physics. So, lets start our topic and we are provide very best knowledge in the physics subject.

## Physics Classes Thermodynamics

• In which “The study of the relations between heat, work , temperature and energy. The law of thermodynamics describes as, how is the energy system change and the system will be perform useful work. The relationship between energy work and heat in the mathematical form which is represent as .where the changing of internal energy of the system is represented • Second law of thermodynamics states that the entropy of an isolated system increases over time.
• Third law of thermodynamics states that A system’s entropy approaches a constant value as the temperature is also approaches a absolute value. thermodynamics is the branch of physics according to me.

### Physics Classes History of thermodynamics

In 1798 Count Rumford (Sir Benjamin Thomson) noticed that limitless amount of heat generated is proportional to the work done in turning operation. A french engineer Sadi Carnot introduces. Who are introducing the concept of heat engine cycle and the principle of reversible cycle heat engine.

### First law of thermodynamics

First law of thermodynamics given the knowledge of conservation of energy. It is sum of the surrounding of the system if internal energy are change. Internal energy is equal to difference between mixed of heat in the system from its surrounding and work done by the system on its surrounding.

But we know that equation :- Where delta U denotes the internal energy of the closed system, Q denotes the quantity of energy supplied to the system as heat and W denotes work done by the system or on the system for its surrounding.

• This equation defined of the first kind of perpetual motion machine.
• W is the work done by a system on its surrounding to the system internal energy U to be decreased or consumed.
• First law of thermodynamics process with transfer of matter.

### Second Law Of Thermodynamics:

This is the defined second law of thermodynamics for the concept of entropy as physical method of its. In this law entropy denotes the direction of spontaneous process. This is the most important for second law. It is defined by the entropy of isolated system left to calculate can not be below of the system.

Second law of thermodynamics can also be used to define the concept of it’s temperature but this is use to simple form of the zeroth law. Heat can not flow hot body to colder body. Its mostly use engineering process like heat engine and heat pump etc.

### Third Law of Thermodynamics

Third law of thermodynamics defined the entropy of the system at absolute zero. it is indicate delta S will reach zero at 0 k. The constant value can not depend on any other parameters of the closed system when such as pressure or applied magnetic field. The system in which state have minimum energy. The system does not contain any heat. All the atoms ad molecules in the system are at their lowest energy point.

### Conclusion in Physics Classes

After that in all process this is most powerful for the engineers. Also all thermodynamics law are very best explanation for all area.

Although you can use this method in thermodynamics, they are very best understanding for all people. Because all those people read this books only for gaining more knowledge in this fields.

Above all data are very true and more effective for engineers.