ASAP Ag2O(s) → 2Ag(s) + ½ O2(g) ΔH° = 31.05 kJ

Which statements concerning the reaction above are true?
(1) heat is released
(2) heat is absorbed
(3) reaction is exothermic
(4) reaction is endothermic
(5) products have higher enthalpy content than reactants
(6) reactants have higher enthalpy content than products

A) 1, 3, and 5
B) 1, 3, and 6
C) 2, 4, and 6
D) 2, 4, and 5

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

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bcde is the incorrect answer it is a