I\'m confused about how this diagram works, I\'ve seen other versions of this qu

Question

I'm confused about how this diagram works, I've seen other versions of this question, and have tried to figure it out but I'm confused

3. The enthalpy diagram below depicts a chemical reaction involving the generic substances A2,B2, and AB. Which of the statements that follow are true for this reaction? Enter the letters corresponding to ALL of the true statements (A, CE,BDF etc.) 2 AB A) If the reaction were carried out in an insulated container, the system would get hotter. B) AH for the reaction is negative. C) The reaction is endothermic. The reacting system releases heat to the surroundings. E) AB is a reactant. F) A2 is a product

Explanation / Answer

see the arrow, it is pointing down
energy is decreasing
so, delta H = negative
energy is released in the reaction

A)
since energy is released by reaction, it will absorbed by the container and container will get hot
True
B)
True
C)
false
D)
True
E)
True
F)
True

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