GC question on DAT destroyer!

[demolitionlvr]

Advertisement - Members don't see this ad

The question was a which is true question.

When solid NH4NO3 is dissolved in water at 25 C, the solution temperature decreases. This reaction is endothermic (True)

explanation was:
Since the solution got colder, heat was absorbed thus the reaction is endothermic...

My question:
but when heat is absorbed...doesn't it get warmer?

 

[AlbinoPolarBear]

The question was a which is true question.

When solid NH4NO3 is dissolved in water at 25 C, the solution temperature decreases. This reaction is endothermic (True)

explanation was:
Since the solution got colder, heat was absorbed thus the reaction is endothermic...

My question:
but when heat is absorbed...doesn't it get warmer?

Heat gets absorbed from the surroundings, so the surrounding gets colder.

I've always understood this concept via 'exothermic reaction'.
In an exothermic reaction, the reaction releases heat, which will make the surrounding temperature increase.

Endothermic reactions are just the opposite.