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Since the appearance of electricity, its use has grown exponentially.
In its beginnings, the use of electrical energy was relegated to industry and lighting. However, little by little a large number of electrical elements have appeared that have completely changed our lives.
Here are some examples of electrical energy:1. Light energy
Electric energy is used to generate light.
The first to invent the light bulb was Thomas Alba Edison. Eddison discovered that when an electric current circulated through a resistor, the Joule effect it produced could generate light.
Little by little this technology has changed and led lights have appeared. However, in…
Last review: September 14, 2021
In physics, electrical potential energy is the potential energy of an electrostatic field. This means that if a point electric charge is placed at a point, it will exert a conservative force on any other charge present. In this case, the potential energy of a charge depends on the set of charges that it has around it.
Electric potential energy is also called electrostatic potential energy when we refer to systems with constant electric fields over time.
This concept is similar to that of gravitational potential energy. In gravitational potential energy, an object at a certain height is affected by an external force that draws it towards the center of the earth. When it comes…
Last review: September 7, 2021
A subatomic particle is a particle smaller than the atom. Some subatomic particles can be part of atoms.
All the chemical elements of the periodic table are formed by the different composition of three subatomic particles: the neutron, the proton and the electron.
The origin of the word atom comes from the Greek and means indivisible. The concept of indivisible comes from the first atomic model of Democritus in which the atom was believed to be the smallest element that could exist. However, today we know that the atom is made up of other, even smaller particles.
All atoms of any element contain protons, neutrons, and electrons, with the exception of hydrogen-1 and the…
Last review: September 6, 2021
An atomic model is the representation of the internal structure of an atom. Atomic models are known as the different graphic representations of the structure and operation of atoms.
Throughout history, the atomic structure has had several models that have evolved to the current atomic model.
The list of the essential atomic models are as follows:1.- Atomic model of Democritus of Abdera (year 450 BC)
The atomic model of Democritus was developed by the ancient Greek philosopher Democritus of Abdera. Democritus believed that matter was made up of tiny indivisible particles that he called atoms.2.…
Last review: September 3, 2021
The primary use of nuclear energy is the generation of electrical power. However, there are many other peaceful uses of nuclear energy.
If we work with different isotopes of the same element, we can use nuclear technology for other uses in various fields.
Nuclear energy does not only manifest itself in fission and fusion processes but is also present in radioactive materials, whether natural or artificial.
These radioactive materials have had various applications in different fields, for several decades, for the benefit of humanity.
Its uses in agriculture include its use as tracers to know the use of nutrients and thus the improvement of crops. Also, they have…
Last review: September 2, 2021
Nuclear reactors are part of nuclear power plants. The purpose of a reactor is to obtain energy from nuclear energy.
The most common use of this type of reactor is the production of electrical energy. In nuclear reactors fission chain reactions (splitting of uranium atoms) are generated to produce thermal energy. The rest of the nuclear power plant will be responsible for using this energy to convert it into electricity.
The differences between the different types of nuclear power plants are based on the way the nuclear reactor they use to produce electricity works.
The most common types of nuclear reactors are:
Pressurized water reactor (PWR)
Last review: September 1, 2021
A coolant in a nuclear reactor is a liquid or gaseous substance that passes through the fuel rods in the reactor core and removes the heat from the nuclear fission reaction during the reactor operation.
Power generation plants that use nuclear energy to obtain electrical energy generate a large amount of thermal energy. The heat generated must be dissipated because otherwise, the reactor’s temperature would rise so much that it could melt.
In dual-circuit power reactors, the reactor coolant enters the steam generator that produces steam that drives the turbines. On the other hand, in single-circuit reactors, the refrigerant (steam or gas) can serve as the working fluid…
Last review: August 31, 2021
The periodic table of elements is a table that contains all known chemical elements represented.
During the 19th century, chemists began to classify known chemical elements according to their physical and chemical properties. In 1860 the first International Congress of Chemists was organized in the German city of Karlsruhe with the aim of unifying the criteria for the classification of elements. This meeting was crucial in the history of science and the origin of the creation of the table that today appears in textbooks.
According to the International Union of Pure and Applied Chemistry (IUPAC) the periodic table of chemical elements…
Last review: August 30, 2021
A chemical element is a pure substance with certain physical and chemical properties. The atomic nucleus of each element consists of protons and neutrons. The number of protons in the nucleus of an atom - atomic number - is unique for each chemical element.
Sometimes, some authors refer to a chemical species to refer to a certain atom. However, this term is also used to refer to other substances such as molecules, ions, etc.
Each chemical element has its Latin name and the chemical…
Last review: August 29, 2021
Chemical energy is the potential of a chemical substance to cope with a chemical reaction. Forming or breaking chemical bonds involves energy. This energy can be absorbed or evolved from a chemical system.
Depending on the nature of chemical reactions, they can either release energy or absorb it.Examples of chemical energy
Here are a few examples of chemical energy:
Nuclear energy to generate electrical power: The reactor generates heat energy during nuclear fission or fusion reactions.
The combustion reaction of fuel releases thermal energy through chemical reactions. For instance, during the combustion of natural gas, it is converted…
Last review: August 26, 2021
The Hamaoka Nuclear Power Plant is a nuclear power plant located in Omaezaki, in Shizuoka prefecture on the east coast of Japan, 200 km southwest of Tokyo.
The plant is managed by Chubu Electric Power Company.
The Hamaoka nuclear power plant is made up of five nuclear reactors. On December 22, 2008, the construction of a sixth unit began.
Hamaoka reactors 1 and 2 were shut down on January 30, 2009.
It is currently closed to update seismic systems and to increase safety in case of unforeseen events, there is no legal precedent in Japan for a plant to close in compliance with all current regulations.How did the Fukushima nuclear accident affect the Hamaoka…
Last review: November 19, 2020