(As you can guess, different fuels begin burning at different temperatures.) Heat or ignition sources lift fuel (combustible material) to its activation energy to start the fire. The fire generates heat which sustains the chemical reaction; the blaze continues and spreads. Some firefighting tactics shield the fuel from air (oxygen) to extinguish the blaze. Carbon dioxide fire extinguishers expel a cold fog of CO2 that cuts a fire off from its air supply.
4. The products of a burning candle are carbon dioxide and water. 5. wax(vapor) + oxygencarbon dioxide + water Reactants Products Conclusion: From this lab, I learned that wax burns in a vapor state. Fire requires fuel and oxygen in order to burn. The products of a combustion reaction are carbon dioxide and water.
PRELIMINARY CHEMISTRY ASSESSMENT TASK 1. Identify the sources of pollution which accompany the combustion of organic compounds and explain how these can be avoided. Combustion refers to the burning of a substance in oxygen. It is a process in which a self-sustained chemical reaction occurs at temperatures above those of the surroundings. Combustion of organic compounds can result in detrimental impacts on the environment such as the generation of acids and production of carbon monoxide, particulates and soot.
C1.4.3 Hydrocarbon fuels Additional guidance: a) Most fuels, including coal, contain carbon and/or hydrogen and may also contain some sulfur. The gases released into the atmosphere when a fuel burns may include carbon dioxide, water (vapour), carbon monoxide, sulfur dioxide and oxides of nitrogen. Solid particles (particulates) may also be released. Candidates should be able to relate products of combustion to the elements present in compounds in the fuel and to the extent of combustion (whether complete or partial). No details of how the oxides of nitrogen are formed are required, other than the fact that they are formed at high temperatures.
Fossil fuels like the substance sulfur dioxide products are burnt to heat water under pressure , making them steam. This high pressure steam is used to spin the turbine generators which make electricity although this method is not really used anymore now. 5.) What are the potential hazards for using this resource? The potential hazards for using sulfur dioxide is it can affect our environment, plants, animals, the air that we breathe, our water resources and our planet.
One of the main reasons why water is so important is that water is median for transferring heat on earth. When our body releases energy, it is released as a form of heat, which the water absorbs almost instantly and evaporate it off of our skin, causing the "cool" sensation. With that being said, water is in our cells in a vacuum called the vacuole. In human, it is mainly to keep our entire body hydrated and clean, but in plants, water is broken down in photosynthesis, which converts carbon dioxide and water into oxygen and energy(carbohydrates). Water also controls our climate weathers.
Class B fires are those that involve flammable or combustible liquids and gasses. Using foam is one of the main ways to control a Class B fire. Class C fires involve energized electrical equipment that must be de-energized; for instance, a burning electrical generator. Once the object is de-energized in most cases the fire can be handled like a Class A or B fire. Class D fires or combustible metals that burn at extremely high temperature levels, and most metals cannot be put out with just water and dry powers are
When the fuels combust, oxygen and fuels react, and heat released. The water then absorbed the heat from the combustion. In this experiment the calorimeter of energy is used to measure the temperature of the heat that is released from the cashew. The equation to find the energy produce during
Atmospheric contamination can occur as a function of improper disposal of fracking fluid, or as a byproduct of natural gas refinement. As mentioned above, if the fracking fluid is not trucked to waste water treatment facilities, or dumped onto fields or into waterways, it is often sprayed into the air in a fine mist to facilitate evaporation. The mix of chemicals contained in the fracking fluid are then released into the atmosphere. (cite) After the gas has been extracted from the well it enters into the first stage of refinement on site. When the gas comes out of the ground, it comes out wet.
Ryan Moreno Professor Mike Grillo Fire Service 102 28 April 2011 Fire Service 102 Project # 1 Backdraft Backdraft is defined as the sudden and explosive ignition of pressurized, superheated, and oxygen-deprived gases (within a closed space) caused by the reintroduction of oxygen. A backdraft occurs in the smoldering stage of a fire. If a fire is burning in an enclosed location such as in a room in a structure it can use all of its oxygen supply of the compartment, slowing the combustion process and the fire. However, with the addition of a new source of oxygen to the enclosed room such as the opening of a door or window will once again bring back together the four elements that make up the fire tetrahedron (oxygen, fuel, heat , and