Question

What are the characteristics of an endothermic reaction?

Answer 1

In an endothermic reaction, heat energy is used up in the reaction.Thus after the reaction temperature decreases.

Explanation:

This is because the energy used for breaking the bonds is more than the energy released during the reaction.

Answer 2

See below

Explanation:

Endothermic reactions are those reaction which requires heat to occur .
Some reactions do occur only at some minimum temperature which is above room temperature .

The temperature lowers down after the reaction , this change is usually detected by clinical thermometer in some lab experiments .
This reaction takes energy from the surroundings , the heat can be in form of heat or light or may be whatever!
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