Exothermic

[donnanguyen1d]

how come when a system's temperature increases, it mean that it is exothermic? wouldn't be endothermic since its temperature went up meaning it absorbed heat?

[Ryan Sydney Beyer 2B]

When a reaction feels cold then it is endothermic since it is taking in heat for the reaction. When a reaction is exothermic then it feels hot because heat is being released from the reaction.

[Cristina Sarmiento 1E]

An exothermic reaction releases energy, which means that heat is also being released, causing a rise of temperature.

[Alex Nechaev 1I]

If a system's temperature increases, that means that heat is being released from the reaction to increase the temperature of its surroundings. Don't think of the system itself as the reaction, but rather as the surroundings of that reaction whose change in temperature determines whether the reaction is endothermic or exothermic.

[Phillip Winters 2F]

The release of heat in an endothermic reaction causes the temperature of the surroundings to increase, whereas an endothermic reaction absorbs heat, thus decreasing the temperature

[Josh Moy 1H]

for an exo reaction delta H is always negative implying the release of heat (thus the reaction is warmer)

[RohanGupta1G]

As others have said, the reaction releases energy causing the surrounding area absorb the energy and feel warmer .

[Shanmitha Arun 1L]

https://www.youtube.com/watch?v=eJXL0IrbtqE

This video gives a good, simple explanation of endothermic and exothermic reactions.