Carbon dioxide is an significant contributor to the enhanced greenhouse effect. It can result in trapping more of the heat that Earth is radiating into space and cause detrimental climate changes and rising sea levels. The main concern regarding the combustion of organic compounds is the result of incomplete combustion. Incomplete combustion occurs when there is not enough oxygen to completely burn the fuel to carbon dioxide and water, causing pollution and fuel inefficiency. For example: Pentane reacts with little oxygen to form
They changed because the molecules of hydrogen and helium were moving so fast that they eventually escaped the Earth. 14. Explain how the greenhouse effect works and how it relates to global warming. The greenhouse effect is when radiation at visible wavelengths passes freely through the atmosphere and is absorbed at the ground. The ground heats up and emits infrared radiation.
Alkanes respond with halogen, (for example, chlorine or bromine) when the mixture is presented to ultraviolet light (symbolized as hv or UV) or when warmed to high temperature (200 - 400c)). The capacity of ultraviolet light is to give vitality to the homolytic cleavage of halogen (Cl-Cl or Br-Br). The items are haloalkanes (RX) and hydrogen halides (Hx) .The halogenation of alkanes is a free radical substitution response, in which the system includes start, spread and end steps. The monosubstitution of alkanes alludes to the substitution response where there is one and only hydrogen molecule in alkanes substituted by halogen free radical. General mechanism The chain component is as per the following, utilizing the chlorination of methane as an issue illustration: 1.
2. What gas is produced naturally in the stratosphere and is also a primary component of photochemical smog in polluted air at the surface? a. carbon dioxide b. carbon monoxide c. ozone d. nitrogen dioxide e. hydrocarbons 3. Which of the following is not considered a temperature scale? a. Fahrenheit b. Kelvin c. Calorie d. Celsius 4.
A) 159 B) 430 C) 601 D) 720 E) 760 Answer: A Diff: 1 Page Ref: Sec. 18.1 7) What is/are the product(s) of photodissociation of molecular oxygen? A) molecular nitrogen B) excited oxygen molecules C) ozone D) ozone and atomic oxygen E) atomic oxygen Answer: E Diff: 1 Page Ref: Sec. 18.2 8) The C-Cl and C-F bond dissociation energies in [pic]are 339 kJ/mol and 482 kJ/mol, respectively. The maximum wavelengths of electromagnetic radiation required to rupture these bonds are __________ and __________, respectively.
This process is fractional distillation. c) Some properties of hydrocarbons depend on the size of their molecules. These properties influence how hydrocarbons are used as fuels. boiling points viscosity flammability. C1.4.3 Hydrocarbon fuels Additional guidance: a) Most fuels, including coal, contain carbon and/or hydrogen and may also contain some sulfur.
Seventy five percent of the table is made up of metals, and a couple of the columns on the right of the table have gases. There are only two elements that are liquids- mercury and bromine. Column 1 contains the alkali metals, which suddenly combust when exposed to air or water. Columns 3-12 are the transition metals, which contain heavier atoms, which are more flexible in how they organize their electrons. Column 17 is made up of the more reactive gases- the halogens.
Carbon dioxide does not only cause problems in the atmosphere but also in the ocean. The coming of industrial advancement has brought many changes in the earth’s environment (Gibson et al., 2011). Industrialization has brought an increase in gases released into the atmosphere; carbon dioxide forming the largest percentage. The ocean absorbs about 30% of the carbon dioxide in the atmosphere and, thus the increase of carbon dioxide in the atmosphere leads to a corresponding increase in the amounts the ocean absorbs. When the ocean absorbs carbon dioxide it reacts with water to produce chemicals such as bicarbonates and carbonic acid, which lowers the pH of the ocean.
Sulfuric Acid is a strong acid that exists as a colorless oily corrosive liquid and is made by reacting sulfur trioxide with water. This is most commonly found in batteries, manufacture of fertilizers, explosives, detergents, dyes and other different chemicals. Sulfuric Acid is very dangerous to humans as it can cause respiratory tracts of humans and other animals while doing some major damage to plants that helps provide oxygen for us. Ground-level ozone is a secondary air pollutant formed when sunlight triggers reactions between nitrogen oxides and volatile hydrocarbons. If a human inhales ground-level ozone it can cause chest pain, throat irritation, and congestion.
“Their influence is known as the greenhouse gases, which are carbon dioxide, chlorofluorocarbons, methane, nitrous oxide, ozone, and water vapor”(“American Meteorological Society 2007”). These gases mixes with the sun ultraviolet rays, disburse into the earth atmosphere with harmful results. Carbon dioxide from the burning of fossil fuels is one way the human activities effects the environment. Carbon dioxide from the exhaust of cars in heavily polluted cities, farming machinery such as tractors, and smokestacks of refinery companies are just some of the ways carbon dioxide gases are release into the atmosphere by human contributors. The nitrous oxide gases affect the aquatic ecosystem food web chains, which leads from the smallest phytoplankton up to the largest mammal, which is man.