Please explain this? It's hump day so please?

Question

anonymous · Answer

attachment

anonymous · Answer

Does this graph represent an endothermic or an exothermic reaction? Explain your answer.
What is the enthalpy change, ΔH, for this reaction? Show your work.
What is the activation energy, Ea, for this reaction? Show your work.

wolfe8 · Answer

This should help http://upload.wikimedia.org/wikipedia/commons/thumb/2/24/Activation_energy.svg/360px-Activation_energy.svg.png

wolfe8 · Answer

http://www.swotrevision.com/pages/alevel/chemistry/images/img_68.GIF

anonymous · Answer

Ea?

chmvijay · Answer

since the product have more energy then the reactant it has to be endothermic:)

anonymous · Answer

Oh....thanks and since I'm struggling with chemistry do you mind if I ask one or two more questions on this question? :)

chmvijay · Answer

yes ur free to ask the questions :) its meant for that

anonymous · Answer

In a particular chemical reaction, the energy of the reactants is 30 kJ and the energy of the products is 5 kJ. The maximum energy of the system is 40 kJ.
	a.	Sketch a potential energy diagram for this reaction. Make sure to label the energy of the reactants, the energy of the products, the activation energy, and the enthalpy change for the reaction.
	b.	What is the activation energy for this reaction?
	c.	What is the enthalpy change for this reaction?

anonymous · Answer

After this i'll do the next question, I just need guidance after seeing how you do it :)

chmvijay · Answer

maximum energy of the system is 40 kJ. is activation energy :)
energy of the reactants is 30 kJ
energy of the products is 5 kJ

chmvijay · Answer

|dw:1387376224865:dw|
can u plot in this