Arrows in the energy diagram below represent enthalpy changes occurring in the exothermic formation of a solution:
ΔH_soln = enthalpy of solution
ΔHsolute-solute = enthalpy change involving solute-solute interactions
ΔHsolute-solvent = enthalpy change involving solute-solvent interactions
ΔHsolvent-solvent = enthalpy change involving solvent-solvent interactions
-Which arrow represents ΔH_{solute-solvent}?

Question

Arrows in the energy diagram below represent enthalpy changes occurring in the exothermic formation of a solution:
ΔH_soln = enthalpy of solution
ΔHsolute-solute = enthalpy change involving solute-solute interactions
ΔHsolute-solvent = enthalpy change involving solute-solvent interactions
ΔHsolvent-solvent = enthalpy change involving solvent-solvent interactions

Arrows in the energy diagram below represent enthalpy changes occurring in the exothermic formation of a solution: ΔH<sub>soln</sub> = enthalpy of solution ΔHsolute-solute = enthalpy change involving solute-solute interactions ΔHsolute-solvent = enthalpy change involving solute-solvent interactions ΔHsolvent-solvent = enthalpy change involving solvent-solvent interactions -Which arrow represents ΔH<sub>solute-solvent</sub>? A) arrow (a) B) arrow (b) C) arrow (c) D) arrow (d)

-Which arrow represents ΔH_{solute-solvent}?

Quizplus · Accepted Answer

The symbol ΔH represents enthalpy change, and when it is followed by specific subscripts or superscripts, it denotes a particular type of enthalpy change. In this case, "solute-solvent" suggests the enthalpy change associated with the interaction between the solute and the solvent, which is a key component of the dissolution process. Arrow (c) is likely chosen because it represents the direction or aspect of the process that involves the interaction between solute and solvent, leading to the dissolution and the associated enthalpy change.

Arrows in the Energy Diagram Below Represent Enthalpy Changes Occurring