What is the enthalpy of dissolution of NH4NO3?

25.41 kJ mol−1
Results of our measurements have been combined with enthalpy of dilution values from Parker to obtain the standard enthalpy of solution of NH4NO3 (c, IV) in water at 298.15 K to be ΔHo = 25.41 kJ mol−1.

Is Delta H positive for dissolution?

The enthalpy change of solution refers to the amount of heat that is released or absorbed during the dissolving process (at constant pressure). This enthalpy of solution (ΔHsolution) can either be positive (endothermic) or negative (exothermic).

When NH4NO3 is dissolved in water the temperature of the water decreases?

When NH4NO3 is dissolved in water, the temperature of the water decreases. When NaOH is dissolved in a separate water sample, the temperature of the water increases. Based on these observations, it can be concluded that the dissolving of? NH4NO3 is endothermic and the dissolving of NaOH is exothermic.

Is the dissolution of ammonium nitrate endothermic or exothermic?

endothermic reaction
Ammonium nitrate dissolving in solution is an endothermic reaction. As the ammonium nitrate dissolves, heat energy is absorbed from the environment causing the surrounding environment to feel cold.

What is the specific heat of nh4no3?

1.740 J/g-°C
Vendors:

Physical Properties Metric Comments
Molecular Weight 80.043 g/mol
Thermal Properties Metric Comments
Heat of Fusion 79.96 J/g
Specific Heat Capacity 1.740 J/g-°C Crystal

Why is dissolution of ammonium nitrate endothermic?

Ammonium nitrate dissolving in solution is an endothermic reaction. As the ammonium nitrate dissolves, heat energy is absorbed from the environment causing the surrounding environment to feel cold.

Is dissolution endothermic or exothermic?

exothermic
The process of dissolving is exothermic when more energy is released when water molecules “bond” to the solute than is used to pull the solute apart. Because more energy is released than is used, the molecules of the solution move faster, making the temperature increase.

Is the dissolution of NH4NO3 exothermic or endothermic?

Why enthalpy of solution of NH4NO3 is endothermic?

Since adding the ammonium nitrate salt to the water results in a decrease in temperature, you can conclude that the dissolution of ammonium nitrate absorbs heat from the surroundings → you’re dealing with an endothermic reaction.