Anode

In its most elementary form, a solar photovoltaic (PV) cell converts solar energy (photons) into electricity (voltage). A solar PV cell is comprised of two doped layers of semiconductor material and generates low-level voltage (less than 1 V). A solar PV module refers to a series of solar PV cells connected together (to generate higher voltage) and laminated into a durable package. A solar panel is formed from the interconnection of several solar PV modules. Finally, a solar PV system is made…

Assignment: Chemistry of Magnesium and Silicon Magnesium Properties Magnesium is a group is a group 2 element with the symbol, Mg, an atomic number of 12 and has a molar mass of 24.31 [1]. It is made up of 12 protons, 12 neutrons, and 12 electrons. It’s electron configuration is 1s2,2s2,2p6,3s2 this given as noble gas configuration is [Ne]3s2. It has a melting point of 650 °C and a boiling point of 1090 °C [2]. It has a metallic radius of 150 pm, a coordination number of 72(6), and a density of…

Scrapping and pollution. Despite shipbreaking being a profitable industry there are a number of environmental and human health hazards. A brief review in numbers shows that scrapped ships have an unlabeled weight of between 5,000 and 40,000 tons, 95% of which is steel, coated with between 10 and 100 tons of paint containing lead, cadmium, organotins, arsenic, zinc and chromium. Ships also contain a wide range of other hazardous wastes, sealants containing PCBs, up to 7.5 tons of various types…

This essay going to be about an atom. Atom is always around us all the time and ever object are made out of an atom. We, humans, are also made of the atom. Knowing about the structure and what it really is a very important thing to learn as a student. In order to learn about an atom, we will have to understand about Democritus first. So who is Democritus? Democritus is the first human to ever come up with the first atomic theory. Democritus was born in Greece around 460BC. He has a life spend…

At the beginning of the 1900s chlorine started to be used as a disinfectant in water. Water had to be chlorinated because of waterborne pathogens which would then go and cause deadly diseases which flourished in our pipes and water ways and infected millions of people. But ever since the disinfection of water the most of these diseases have been eliminated in first world countries but is still a big problem in 3rd world problems. (Calomiris, 1998) Chlorine is the most used disinfectant around…

Space Exploration And Colonization Space exploration is a wonderous thing that some people could only dream about happening.Being able to see the cosmos and floating in the nothingness, see stars, explore planets and other solar systems. There's just something extravagant about it, nevertheless it can also be dangerous and can kill you if you're not prepared just think of the climate on other planets.We also produce lots of litter when leaving earth's atmosphere but we could…

The issue : Global warming (Benzene 2C6H6) Figure (1) Different ways to create carbon and how it affects the environment. Combustion (O2) is a process that involves benzene. 2 C6H6(l) + 15 O2(g) ---> 12 CO2(g) + 6 H2O(g) Benzene is used as a fuel for cars, it has some problem with the environment. As seen in Figure (1) and the balanced equation that the process of making Benzene makes lots of carbon (gas) which damages the environment because it makes “greenhouse gases” trapped in the…

provide for all these requirements, as well as increase utilization of the catalyst, its durability and performance (Wilkinson et al. 2010). The high cost and scarcity of precious metals such as platinum is an obstacle to commercial application in anodes and cathodes. Research…

Introduction Graphene is considered as pure carbon in the form of a very thin, one atom thick nearly transparent sheet. It is very strong for its low weight (100 times more stronger than steel and it conducts heat and electricity efficiently. While scientists had theorized about graphene for decades, it was first produced in the lab in 2003. Because it is virtually two-dimensional, it interacts oddly with light and with other materials. Researchers have identified the, ballistic transport of…

CHEMISTRY STAGE 1: ISSUE INVESTIGATION In this issue investigation, the essay will be focussed on and discussing the beneficial and non-beneficial of fuel cells and associating it with fossil fuels. But first, you might query what fuel cells and fossil is? Well fuel cell is an electrochemical energy stratagem that converts hydrogen fuel as well as oxygen to produce electricity, heat and water. While on the other hand fossil fuel are the products fossils that are really old. For instance the…