Endothermic/Exothermic

[306022612]

In chapter 4B, it says absorbing heat has a negative Q value and is endothermic (shown in example 4B.7). However, in chapter 4C it says an endothermic process absorbs heat. So I am confused are they different for different things, or am I not understanding something correctly?

[Madison Dawson 1A]

Hi,
It should be that all endothermic processes absorb heat into the system in order to go through with a reacion. On the contrary, exothermic reactions release heat from the system. The Q for an endothermic reaction is negative because the final energy of the system is less than the initial energy. This is because heat is absorbed on the products side of the reaction(the initial side). Q should therefore be negative for all endothermic processes in which the final energy is less than the initial.

[yvette nouneh]

An endothermic process is a process that absorbs heat in order to carry out a reaction. The heat of a reaction (Q) is negative because heat was absorbed and the final state of a reaction will have less heat than the initial state of the reaction.

[Siena Bertacco 1G]

A system that is endothermic requires heat to carry out a reaction therefore it absorbs heat and ultimately cools the surroundings, however a system that is exothermic releases heat into the surroundings causing the temperature of the surroundings to rise.