Question

Using the graph and the dissolution of ammonium nitrate in water is giving by the following equation:
NH
NO
+ heat → NH
+ NO
Which statement best describes what an energy graph of this reaction would look like?
(1 point)
4
3(s)
4
+
(aq)
3
-
(aq)
The reactants would appear at a higher energy state than the products
The reactants and products would appear at a high energy state.
The reactants would appear at a lower energy state than the products
The reactants and products would appear at a low energy s

Answer 1

The reactants would appear at a lower energy state than the products.

Explanation: Dissolving NH4NO3 is endothermic (it absorbs heat), so the enthalpy of the products (ions in solution) is higher than that of the solid reactant. An energy diagram would show an activation-energy peak, then products higher on the energy axis than the reactants (ΔH > 0).