What is Thermodynamics
Thermodynamics is physics that works with heat and other forms of energy. It shows what thermal energy is converted to/from others forms of energy.
Thermal energy is the energy that revolves around temperature cause the energy of moving or vibrating molecules. Thermodynamics involved measuring energy.
Thermodynamics involves large number of atoms or molecules interacting in many different ways. If the project is equilibrium. The project can now be in smaller measurements/numbers.
Thermodynamics is concerned with mainly heat. The heat gets transferred from substances to systems because of temperature difference between them. The heat cannot be terminated but it can transfer from one place to the next. The heat can also be converted to/from other sources of energy.
Depending on the speed and number of atoms or molecules differs of how much of heat is transferred by a substance. The faster they move the move higher the temperature. And the bigger quantities of atoms and molecules with give the greater amount of heat being transferred.
The amount of heat required in order for the temperature to increase of a certain mass of a substance by a certain quantity is called specific heat or specific capacity. Specific heat depends entirely by the number of atoms in the sample.
Thermal conductivity is the rate that heat passes through certain materials expressed as the amount of heat that flows through per unit.
Heat can be transferred from one being to the other. The fields its with is conduction, convection and radiation.
Conduction the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Radiation is the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
Laws of thermodynamics
The principles of thermodynamics were originally showed in three laws. But was neglected because it apparently seemed to obvious that it did not need to be stated explicitly. It was said that the first three were already discovered and supposedly well known by assigned numbers.
The zeroth law of thermodynamics states that if two thermodynamic systems are each in thermal equilibrium with a third, then all three are in thermal equilibrium with each other.
First law of motion is often stated as. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
The second law is an empirical finding that has been accepted as an axiom of thermodynamic theory. Statistical thermodynamics, classical or quantum, explains the law. The second law has been expressed in many ways.