SSC MTS EXAM

SSC

CHEMISTRY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Is the combustion of gasoline endothermic or exothermic?

A	Endothermic
B	Exothermic
C	Either A or B
D	None of the above

Explanation:

Detailed explanation-1: -Combustion of a fuel is an exothermic reaction because energy is released during combustion.

Detailed explanation-2: -Assume gasoline to be pure octane (C8H18) and calculate the mass (in kg) of carbon dioxide that is added to the atmosphere per 1.0 kg of octane burned. (Hint: Begin by writing a balanced equation for the combustion reaction.)

Detailed explanation-3: -For example, burning gasoline in a car’s engine is an exothermic reaction. This particular type of exothermic reaction is known as a combustion reaction. A combustion reaction occurs when a compound, such as the hydrocarbons that make up fuel, react with oxygen to form a new product and produce heat.

There is 1 question to complete.