Question #2a9e4

1 Answer
P dilip_k
Aug 31, 2016

THE REACTION IS CALLED ENDOTHERMIC REACTION

Explanation:

https://socratic.org/s/axvZR3EF

http://www.citycollegiate.com/chemical_kineticsXIb.htm

This figure is obtained from the link given above.In this link concept of activation energy has been explained in detail.

Let

#"Thresold Energy of Reaction "=E_t#

#"Average Energy of Reatants "=E_r#

#"Average Energy of Products "=E_p#

#"Activation Energy of Forward Reactin"=E_a^f#

#"Activation Energy of Backward Reactin"=E_a^b#

So

#E_a^f=E_t-E_r#

#E_a^b=E_t-E_p#

Now

#"Heat of reaction "DeltaH=E_p-E_r#

Again given cindition is

#E_a^f>E_a^b#

#=>E_t-E_r>E_t-E_p#

#=>E_p-E_r>0#

#=>DeltaH>0color(red)(->"Means the reaction is endothermic")#

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