SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A chemical property that refers to the energy released when a compound undergoes burning.
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Reactivity
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Flammability
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Chemical Stability
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Heat of Combustion
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Explanation:
Detailed explanation-1: -Calorific value reflects the amount of energy emitted when a fuel or substance undergoes a complete combustion process.
Detailed explanation-2: -Combustion is a high-temperature exothermic (heat releasing) redox (oxygen adding) chemical reaction between a fuel and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke.
Detailed explanation-3: -Burning wood provides heat through the exothermic chemical reaction of oxygen (O) with cellulose (C6H10O5), the major chemical component of wood, to produce carbon dioxide (CO2), steam (H2O) and heat. The chemical reaction describing the process is C6H10O5 + 6O2 = 6CO2 + 5H2O + heat.
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