3. Find the standard enthalpy of formation of hyene enhefollowingd . given the following data: (E...

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Answer 1

Answer #1

Ans 3 :

The standard enthalpy of the reaction can be determined by subtracting the formation enthalpies of reactants from that of products.

Here it is -1411 KJ , and the formation enthalpy of CO2 (g) and H2O (l) is given and that of O2 (g) is 0

putting values :

-1411 = 2(-393.5 KJ/mol) + 2(-285.8 KJ/mol) - 3(0) - H

H = 52.4 KJ/mol

Answer 2

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