Exothermic

However, now with the endothermic and exothermic reactions, chemical energy exchanges showcased through this technology can save a municipality millions each year. Deep water cooling is a sustainable resource due to water's unique properties. Water, which does not freeze in large bodies of water…

The purpose of the liver lab was to understand how enzymes, more specifically catalase, break down poisonous chemicals, hydrogen peroxide. In the lab we used multiple reactants, temperatures, and pH levels. For the tissues and enzymes we used livers, new, used, cold, warm and boiled, chicken breasts, potatoes, and apples. We also used hydrogen peroxide, warm and cold, acidic and basic, and used liquid from a reaction. Hydrogen peroxide acts as a substrate for the enzymes. The reactants were the…

CONTENTS RESEARCH QUESTION How does the length of carbon chains, specifically those related to alkanols, namely ethanol 1- propanol and 1- butanol, affect the heat of combustion? AIM To investigate how the length of carbon chains affect the heat of combustion and enthalpy, in order to determine which fuel would be the safest and most efficient to take on a camping trip. HYPOTHESIS If the number of carbon atoms in an alkanol is increased, then the alkanol containing the longest carbon…

Who is My Audience? I’m writing this article for The Ubyssey; therefore, my audience is the general student body population of UBC. More specifically, it’s towards first time college students who have been scarred by a decline in their grades. The students who confused and surprised by the amount of work that is expected of them, and don’t know how to manage their time wisely. Its to aid those who are naively spending hours on a studying method that simply wont reap them the grades they’re…

Renae Hallinan is an elite netballer, playing for the Adelaide Thunderbirds in the ANZ Championship League and the Australian Diamonds in the World Championships. Renae is required to work at a fast pace with an extremely high level of skill, as considerable demands are placed upon her anaerobic energy systems, with aerobic fitness assisting in her recovery between bursts of play. Netball games consist of four 15 minute quarters. There is a 3 minute break between the first and second quarter and…

hue) that appeared at the bottom of the test tube- the cyclohexane and the acid did not mix. As for the cyclohexene, the product consisted of a dark brown mixture with a high viscosity. It was deemed soluble as the mixture also produced heat- an exothermic reaction. The results between the cyclohexene and the sulfuric acid were possible due to the attraction forces between a positive hydrogen ion (in solution) and a negative oxygen ion in the sulfuric acid- a carbon from the double bond (alkene)…

The alcohol Ethanol a chemical compound that is made up of hydrogen, carbon and oxygen and is produced by a fermentation process, this means that this type of alcohol is renewable, although there are non-renewable ways in which to produce this type of alcohol. This alcohol is often mixed into materials such as gasoline, this helps to allow it to be used as a fuel, and help preserve non-renewable materials that could be put to use in more important ways. The mixture of this is often only at a…

Tables gives the enthalpy change for three reactions Na(s) + ½Cl2(g)  NaCl -411.2 H2(g) + 1/2O2(g)  H2O -242.0 CH4(g) + 2O2(g)  CO2(g) + -1461,9 Al three of these reactions are exothermics with a considerable amount of energy being released. Just as a stone tends to run downhill, energy tends to run downhill. The low energy state of the products is more stable than the higher energy state of reactants – everything always likes to…

Introduction In 1950 the Nobel Prize for Chemistry was awarded to Otto Diels and Kurt Alder for their description of an invaluable chemical reaction (The Nobel Prize in Chemistry 1950). The reaction they described was for the formation of carbon-carbon bonds in a six membered ring with exceptional control of its stereochemistry in one step (Diels-Alder Reaction Gains Nobel Prize). This was an important discovery due to the fact that six membered rings are abundant natural products and man-made…

Figure 1 shows the relation between density ρ and molar volume Mv as a function of copper oxide. From this figure, can be observed that the ρ and Mv decreased with the increased of copper oxide content replacement the lead oxide. The decrease of density due to the molecular weight of CuO is lower than the molecular weight of Pb3O4. The decrease of the molar volume due to the decrease the number of oxygen and may be the ionic radius of copper ions less than the ionic radius of lead ions. The…