Question

‘Q’ is heat energy which is shown with plus (+) sign in a chemical equation
indicating a
A) Exothermic reaction B) Endothermic reaction
C) Thermal D) None

Answer 1

Answer:

option (B)

Explanation:

A chemical reaction or physical change is endothermic if heat is absorbed by the system from the surroundings. In the course of an endothermic process, the system gains heat from the surroundings and so the temperature of the surroundings decreases. The quantity of heat for a process is represented by the letter(Q).

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