A fire is an example of ________________ reaction, because heat is _____________ the system.
a
endothermic; leaving
b
exothermic; entering
c
exothermic; leaving
d
endothermic; entering
c
exothermic; leaving
The correct answer is:
c) exothermic; leaving
Explanation:
A fire is an example of an exothermic reaction because it releases heat into the surroundings. In this case, the heat is leaving the system.
The correct answer is c) exothermic; leaving.
To understand why, we need to know the definitions of exothermic and endothermic reactions, as well as how heat interacts with the system.
An exothermic reaction releases energy in the form of heat, while an endothermic reaction absorbs heat or energy from the surroundings.
In the case of a fire, it is an exothermic reaction because it releases heat energy. The heat that is generated by the fire is being produced by the reaction, and therefore, it is leaving the system, warming up the surroundings.
So, in the given options, the correct answer is c) exothermic; leaving.