G
J.8.1 g/100g {- #glo-g/100g}
What is g/100g?
“g/100g” is a unit of measurement that is often used to express the concentration of a substance in a solution or mixture. It stands for “grams per 100 grams,” and it is used to express the amount of a substance present in a sample in relation to the total weight of the sample.
For example, if a solution contains 10 g of a substance per 100 g of the solution, it would be expressed as 10 g/100g. This means that the substance makes up 10% of the total weight of the solution. Similarly, if a mixture contains 20 g of a substance per 100 g of the mixture, it would be expressed as 20 g/100g, indicating that the substance makes up 20% of the total weight of the mixture.
“g/100g” is often used in chemistry, biology, and other scientific fields to express the concentration of a substance in a sample. It can also be used to compare the concentrations of different substances in different samples or to calculate the amount of a substance needed to make a solution or mixture of a certain concentration.
Galvanic Cell
What is a Galvanic Cell?
A Galvanic cell, also known as a voltaic cell, is a type of electrochemical cell that produces electricity through a chemical reaction. It is a type of battery that consists of two electrodes, one positively charged and the other negatively charged, immersed in an electrolyte solution. When the electrodes are connected by an external circuit, a chemical reaction occurs at the electrodes, and electrons are transferred from the negative electrode (the cathode) to the positive electrode (the anode). This flow of electrons produces an electric current, which can be used to do work, such as powering an electrical device. Galvanic cells are a common source of electricity in many everyday devices, such as batteries and fuel cells.
Gamma Decay
What is gamma decay?
Gamma decay is a type of radioactive decay in which an atomic nucleus emits a high-energy photon, known as a gamma ray. Gamma rays are a form of electromagnetic radiation, and they have a very short wavelength and a very high frequency. They are the most energetic and most penetrating type of radiation, and they are capable of ionizing atoms and molecules.
Gamma decay occurs when an atomic nucleus is in an excited state, and it has too much energy to remain stable. In order to become more stable, the nucleus emits a gamma ray, which carries away some of its excess energy. This causes the nucleus to transition to a lower energy state, and it becomes more stable as a result.
Gamma decay is one of the three main types of radioactive decay, along with alpha decay and beta decay. It is typically associated with the decay of high-energy states of atomic nuclei, and it can occur along with other types of decay, such as alpha or beta decay.
Gamma decay is an important concept in many fields, including chemistry, physics, biology, and medicine. It is used to study the properties of atomic nuclei, and it has many practical applications, such as in medical imaging and cancer treatment.
Gamma Ray
What are gamma rays?
Gamma rays are a form of electromagnetic radiation, and they have a very short wavelength and a very high frequency. They are the most energetic and most penetrating type of radiation, and they are capable of ionizing atoms and molecules.
Gamma rays are produced naturally in certain types of radioactive decay, such as gamma decay and nuclear fission. They are also produced artificially in particle accelerators and other high-energy experiments.
Gamma rays are important in many fields, including physics, chemistry, biology, and medicine. They are used to study the properties of atomic nuclei and other high-energy phenomena, and they have many practical applications, such as in medical imaging and in the treatment of cancer.
Overall, gamma rays are fascinating and important particles that are at the forefront of many areas of science and technology. They are a key part of the study of the fundamental properties of matter, and they continue to be a subject of intense research and curiosity.
Gas
What is a gas?
A gas is a state of matter in which a substance has no definite shape or volume. In contrast to solids and liquids, which have a fixed shape and volume, gases are able to expand and fill the shape of their containers. This is because the particles in a gas are very far apart and are not held together by any strong attractive forces. The lack of order and structure in a gas gives it the ability to expand and contract freely in response to changes in temperature and pressure.
Gibbs-Duhem Equation
What is the Gibbs-Duhem equation?
The Gibbs-Duhem equation is a mathematical expression that relates the chemical potential of a substance to its concentration in a solution. It is named after the American thermodynamicist J. Willard Gibbs and the French physicist Pierre Duhem.
The Gibbs-Duhem equation states that the change in the chemical potential of a substance in a solution is equal to the product of the concentration of the substance and the change in the chemical potential per unit concentration of the substance. Mathematically, the equation is written as:
Δμ = Δμ/Δc * Δc
where Δμ is the change in the chemical potential of the substance, Δc is the change in the concentration of the substance, and Δμ/Δc is the concentration dependence of the chemical potential, which is a measure of how the chemical potential of the substance changes as its concentration changes.
The Gibbs-Duhem equation is a fundamental equation in thermodynamics and is used to describe the relationships between the chemical potentials of different substances in a solution. It is used to predict the direction and extent of chemical reactions, and to understand the behavior of solutions under different conditions.
Gibbs Free Energy
See Free Energy.
Gravitational Force
What is gravitational force?
The gravitational force is a fundamental force of nature that is responsible for the attraction of masses. It is the force that pulls objects towards each other, and it is the force that is responsible for the movement of planets and stars. The gravitational force is one of the four fundamental forces in nature, along with the electromagnetic force, the weak nuclear force, and the strong nuclear force. The gravitational force is a long-range force, which means that it acts over large distances, and it is much weaker than the other fundamental forces. The gravitational force is important because it is involved in the movement of objects in the universe, and it is the basis of the theories of gravitation and relativity. The study of the gravitational force and its applications is called gravitational physics.