In the enthalpy diagram attached, which of the following is true?

A) The reaction is exothermic.

B) The energy difference between reactants and products is greater for the reverse direction than for the forward direction.

C) The combined reactants possess more energy than the combined products.

D) The activation energy in the forward direction is greater than the activation energy in the reverse direction

Question

In the enthalpy diagram attached, which of the following is true? 

		
A) The reaction is exothermic.
		
B) The energy difference between reactants and products is greater for the reverse direction than for the forward direction.
		
C) The combined reactants possess more energy than the combined products.
		
D) The activation energy in the forward direction is greater than the activation energy in the reverse direction

anonymous · Answer

@arronq and @gsoda, I know I just asked a question similar to this, but I'm confused because one of the answers is the same for both of the diagrams. It kind of makes me wonder if they're looking for a different answer this time. Am I right or am I over analyzing. Because D is right (it's the same diagram and same answer as last question) but if they want a different answer, I'd go with B. What do you think?

aaronq · Answer

the energy difference is the same for either process, it's just different in sign (negative/positive). The only plausible answer would be D.

anonymous · Answer

Okay, that's what I thought, but my stupid brain overthinks things sometimes. Thank you :)

aaronq · Answer

i do over-analyze things all the time too lol no problem :)