In a wet type of voltaic cell, what is electrolyte?
Electrolyte in a wet type of voltaic cell is a liquid solution or a paste that contains ions that allow for the flow of electrons between the anode and cathode. It acts as a medium for the transfer of ions and maintains the electrical neutrality of the cell. Examples of electrolytes used in wet type of voltaic cells include sulfuric acid, sodium chloride, and potassium hydroxide.
Piezoelectrictricity is caused by pressing or squeezing--- What?
Piezoelectricity is caused by pressing, squeezing or applying mechanical stress to certain crystalline materials such as quartz, certain ceramics, and some biological materials such as bone and DNA. When these materials are subjected to mechanical pressure or stress, they generate an electric charge or voltage across their surfaces. This electric charge can be harnessed and used for various applications such as sensors, actuators, and as a source of electrical energy. The piezoelectric effect works by causing a displacement of charge within the crystal lattice structure of the material, which in turn produces an electric charge at the surface of the material.
crystals
Crystals are highly ordered, three-dimensional structures that have a repeating pattern of atoms or molecules. They can be found in nature or can be synthesized in laboratories. Crystals have a variety of properties including transparency, electrical conductivity, and resilience.
There are many types of crystals, including metallic crystals, covalent crystals, and ionic crystals. Metallic crystals are formed by metallic elements and are held together by metallic bonds. Covalent crystals are formed by covalent bonds between atoms and are often very hard and brittle. Ionic crystals are formed by ionic bonds between oppositely charged ions and are typically very brittle with high melting points.
Crystals have many important applications in technology and science. They are used in electronic devices, such as computers and cell phones, as well as in medical imaging and even in jewelry. The study of crystals is called crystallography and has contributed significantly to our understanding of the molecular structures of various substances.
quartz and Rochelle salt crystals
Both quartz and Rochelle salt crystals exhibit the piezoelectric effect, where they generate an electric charge in response to mechanical pressure or stress.
Quartz is a mineral that is commonly found in the Earth's crust. It is composed of silicon and oxygen atoms and has a hexagonal crystal structure. Quartz crystals have a high degree of mechanical stability, which allows them to be used in various electronic devices, such as resonators, oscillators, and filters. Quartz crystals are also used in watches, clocks, and other timekeeping devices.
Rochelle salt, also known as potassium sodium tartrate, is a type of salt crystal that was discovered in 1675. It is composed of potassium, sodium, carbon, and oxygen atoms and has a monoclinic crystal structure. Rochelle salt crystals have high piezoelectric coefficients, which make them useful in various applications such as microphones, phonograph pickups, and electronic filters.
Overall, both quartz and Rochelle salt crystals are important materials for the piezoelectric effect and have practical uses in modern technology.