Spontaneous combustion is a type of combustion which occurs without an external ignition source. In ordinary combustion combustion, rapid chemical reaction of two or more substances with a characteristic liberation of heat and light; it is commonly called burning. Rapid combustion. spontaneous combustion, phenomenon in which a substance unexpectedly bursts into flame without apparent cause. This means that it requires no external energy for the combustion to start. A combustion reaction is divided mainly into 3 types based on how the reaction happens and the products formed. Answer: (a) rapid combustion 2. Such a combustion never gets really completed. Spontaneous combustion or spontaneous ignition, as it is often called, is the occurrence of fire without the application of an external heat source. As the temperature rises above 130°F (55°C), a chemical reaction occurs and may sustain itself. Spontaneous combustion: The ignition of a substance or body from the rapid oxidation of its own constituents without heat from any external source is known as spontaneous combustion. The likelihood that spontaneous combustion will occur in improperly ventilated containers of highly unsaturated oils is _____ the likelihood that such combustion will occur with hydrocarbon lubricating oils. mines. Rapid combustion. Rapid Combustion It is a combustion in which a large amount of heat and light is produced in a short time In easy language,It is a combustion in which a substance burns very fast Example When we light a matchstick and bring it near stove,it produces fire rapidly (very fast) Spontaneous Combustion The combustion reaction in which a large amount of heat and light are produced in a short . It significantly affects and restricts the safe production of coal mines, threatens the lives and health of miners, and causes greenhouse gas emis After coal contacts oxygen, oxidation reactions occur. Spontaneous combustion or spontaneous ignition, as it is often called, is the occurrence of fire without the application of an external heat source. Combustion can be divided into three types: Rapid combustion. Answer: Well I don't think there is such a thing as 'instantaneous' combustion but perhaps slow and fast, with everything in between. In rapid combustion, a substance burns rapidly producing heat and light. Difference between Rapid and Spontaneous combustion 1 Rapid combustion is to be initiated by once. How many types of combustion are there answer? Rapid Combustion 3. What are the examples of spontaneous combustion? Examples are burning of LPG, petrol, dry grass, matchstick, magnesium ribbon, etc. Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, autoignition. Slow combustion 4. This combustion may take place when combustible matter, such as coal or hay, is stored in bulk. Rapid combustion - When combustion occurs rapidly, it is called rapid combustion. For this to occur there are three steps: The body/object must be heated to an ignition temperature (the point at which, even without exposure to flame, it will catch fire). Example of spontaneous combustion: Burning of white phosphorous on its own when kept exposed in air for some time. Spontaneous Combustion. In rapid combustion, a substance burns rapidly producing heat and light. The combustion in which substances suddenly burst into flames, without the application of any apparent cause is called spontaneous combustion. are solved by group of students and teacher of Class 8, which is also the largest student community of Class 8. RAPID COMBUSTION : Rapid combustion is a process in which large amount of heat and light are released in a very short span of time. . Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, autoignition. Spontaneous combustion occurs when an object bursts into flames due to a chemical reaction, without any ignition from an external heat source. Rapid Combustion. At what temperature does spontaneous combustion occur? Rapid combustion; Explosive combustion; Spontaneous Combustion. This is why when things . Spontaneous combustion take place by itself. Explosion, and. What is the process of combustion? Combustion is mainly of four types - explosion, spontaneous , Rapid and slow. Explosive Combustion. What is rapid combustion give example? Chapter - 6 Combustion and Flame Test 1 | Class 8th Click on 'Start Quiz' to Take Test . what is the rapid combination of oxygen with a fuel, which produces a noticeable release of energy called? This reaction does not require oxygen, but the flammable gases produced are at a . Spontaneous combustion: The ignition of a substance or body from the rapid oxidation of its own constituents without heat from any external source is known as spontaneous combustion.Example: 1.Phosphorous and sulphur start burning instantaneously; at room temperature. Spontaneous combustion - The types of combustion in which material suddenly bursts into flames, without the application of any apparent cause is called spontaneous combustion. All volatiles have already been driven off, oxygen reaches the combustion surfaces, and there is no visible smoke. (a) Rapid combustion (b) Spontaneous combustion (c) Explosion (d) None of these. Name the combustion in which substances burn rapidly to produce heat and light. Combustion :Combustion is a chemical process in which substances combine with oxygen in air, producing heat and light.Combustion is mainly of four types - explosion, spontaneous , Rapid and slow. Combustion :Combustion is a chemical process in which substances combine with oxygen in air, producing heat and light.Combustion is mainly of four types - explosion, spontaneous , Rapid and slow. Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. Rapid combustion. This reaction results in enormous amounts of light and heat energy. Download the Science Quiz Questions with Answers for Class 8 free Pdf and prepare to exam and help students understand the concept very well. The fuel used in the human body to produce energy, is (a) coal (b) food (c) juices . Fig: Types of combustion. An explosion is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of . Spontaneous combustion is a type of combustion which occurs without an external ignition source. Answer. Rapid combustion 2. The engines of cars and other internal-combustion machines are designed based on the rapid combustion of fossil fuels. 1. Statement 1: Phosphorus burns in air at room temperature. In rapid combustion, external heat is required to start it once. (a) Rapid combustion (b) Spontaneous combustion (c) Explosion (d) None of these. Even the fastest combustion can be shown to have a temporal development with slow motion cameras or similar equipment. For instance, white phosphorus burst into flames spontaneously at the room temperature without the submission of heat. Rapid combustion can be seen in the rapid burning of matchsticks after lighting. For example- Petrol, LPG, bourbon, and other alcoholic beverages. Because combustion is so important for aircraft and rocket propulsion, we will review the fundamentals. When the gas burns in air it is a chemical change. Spontaneous combustion. Example: Phosphorous and sulphur start burning instantaneously; at room temperature. The original substance is called the fuel, and the source of oxygen is called the oxidizer. Spontaneous combustion is a type of combustion which occurs without an external ignition source. The term "Spontaneous Combustion" refers to the occurrence of fire without the application of heat from an outside source. Rapid Combustion. Greater than B. Explosive Combustion 8. Slow Combustion 2. 3. A combustion reaction which takes place at a high speed and with the release of a huge amount of heat and light is known as rapid combustion. Example: 1. Spontaneous combustion The combustion reaction which occur on its own (without the help of any external heat)is called Spontaneous combustion.It place at room temperature.The heat required for spontaneous combustion is produced inside the substance by its slow oxidation. spontaneous combustion meaning: 1. a situation in which something suddenly starts to burn without any obvious cause 2. a situation…. Correct Answer: (b) rapid combustion Explanation: LPG burns rapidly and produces heat and light. Spontaneous combustion: The ignition of a substance or body from the rapid oxidation of its own constituents without heat from any external source is known as spontaneous combustion. Explosive combustion. Burning of LPG is an example of rapid combustion. The gas produced in the working of soda-acid type fire extinguisher is (a) carbon dioxide (b) oxygen (c) sulphur dioxide (d) hydrogen Answer: (a) Question 4. Combustion that takes place at a very fast rate is called rapid combustion. The Questions and Answers of Burning of LPG is an example of :a)slow combustionb)spontaneous combustionc)Both slow combustion & spontaneous combustiond)rapid combustionCorrect answer is option 'D'. Class 8 Chemistry Combustion and Flame. Complete combustion: Complete combustion is the mixture of fuel with oxygen without remaining fuel over time, friction and high . Spontaneous Combustion. Rapid combustion is a form of combustion, otherwise known as a fire, in which large amounts of heat and light energy are released, which often results in a flame.This is used in a form of machinery such as internal combustion engines and in thermobaric weapons.Such a combustion is frequently called a Rapid combustion, though for an internal combustion engine this is inaccurate. Advertisement Advertisement priyarose42 priyarose42 Rapid combustion is the answer. Class 8 Chemistry Combustion and Flame. Spontaneous combustion: The ignition of a substance or body from the rapid oxidation of its own constituents without heat from any external source is known as spontaneous combustion. The term "spontaneous human combustion" refers to a situation when a human body is found with significant portions of the middle parts of the body reduced to ashes, much less damage to the head and extremities, and minimal damage to the direct surroundings of the body. The burning of LPG is an example of (a) rapid combustion (b) spontaneous combustion (c) slow combustion (d) explosion. First, if spontaneous human combustion was real then it's really odd that we've never seen cases of spontaneous bovine combustion. Example: 1. Burning of . Under the comprehensive influence of internal and external factors, when heat accumulates, the temperature of the coal . This type of combustion occurs when there is an unlimited supply of air or oxygen. Example of rapid combustion: Burning of domestic cooking gas in a gas burner. Statement 2: It is an example of spontaneous combustion. The combustion in which substances burn rapidly to produce heat and light is called rapid combustion. What types of combustion are there? spontaneous combustion. Example: Phosphorous and sulphur start burning instantaneously; at room temperature. A substance with low-ignition temperatures gets heated and this heat is unable to escape. What is the process of combustion? Spontaneous Combustion 4. Explanation: please mark me as brainliest and follow me. 4. Rapid Combustion It is a type of combustion in which the gas burns quickly and produces heat and light. Rapid combustion means a substance burning very fast, usually because of a large surface areas exposed to atmospheric oxygen as in a dispersed powder or aerosol. Chapter - 6 Combustion and Flame Test 1 | Class 8th Click on 'Start Quiz' to Take Test . Spontaneous combustion: The ignition of a substance or body from the rapid oxidation of its own constituents without heat from any external source is known as spontaneous combustion. Explosive combustion. Considered a bit of a misnomer, "spontaneous combustion" is anything… B. Spontaneous combustion C. Slow combustion D. Explosion 2 See answers Advertisement Advertisement Shujathekiya Shujathekiya Answer: A. Combustion :Combustion is a chemical process in which substances combine with oxygen in air, producing heat and light.Combustion is mainly of four types - explosion, spontaneous , Rapid and slow. Burning a fuel is called combustion, a chemical process that we study in middle or high school. Rapid Combustion. Hence, the definition of 'spontaneous combustion' is 'combustion that results when materials undergo atmospheric oxidation at such a rate that the heat generation exceeds heat dissipation and the heat gradually builds up to a sufficient degree to cause the mass of material to inflame' (Carson and Mumford, 2002 ). Spontaneous combustion can be observed when eaten food flamelessly burns to release energy in the form of ATP. When some carbon-based materials, such as activated carbon or charcoal briquettes, are in contact with water, an oxidation reaction occurs between the carbon material, the . Rapid Combustion. In this type of combustion, both heat and light are released. Spontaneous Combustion. The type of combustion reaction that occurs with a great speed producing an enormous heat & light in a short time is known as Rapid combustion. Spontaneous combustion. Spontaneous Combustion As the name suggests here the combustion occurs spontaneously. When the gas burns in air it is a chemical change. Combustion of LPG is a chemical change because, after its combustion, the new substance formed changes chemically and cannot be turned back into LPG. For instance, when we bring a matchstick near the gas stove it rapidly catches fire. For example: When a burning matchstick is brought near a gas burner and the gas tap is opened . LPG burns rapidly and produces heat and light. Combustion of LPG is a chemical change because, after its combustion, the new substance formed changes chemically and cannot . Spontaneous combustion 3. Materials can also spontaneously combust when in contact with water. The ignition of a substance or body from the rapid oxidation of its own constituents, without heat from any external source. Spontaneous combustion: The ignition of a substance or body from the rapid oxidation of its own constituents without heat from any external source is known as spontaneous combustion. Complete Combustion. Spontaneous Combustion: Combustion in which a material suddenly bursts into flames, without application of any cause is called spontaneous combustion. Combustion is a technical term for burning, which is a chemical process that occurs when a fuel reacts with an oxidant to produce heat. 1. Rapid combustion: As the name suggests, rapid combustion has a fast rate of reaction. What type of reaction is burning gasoline? It is usually a slow process that can take several hours of decomposition/oxidation with heat building up to a point of ignition. Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. Spontaneous combustion occurs because of slow oxidation raising the temperature until the autoignition point is reached, as for example in a pile of oily rags or a pile of fine coal. Explosive combustion. Combustion can be divided into three types - rapid combustion, spontaneous combustion and explosion. Eg, Burning of phosphorus. 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