Arrows in the Energy Diagram Below Represent Enthalpy Changes Occurring

question 57

Multiple Choice

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}?

• A)arrow (a)
• B)arrow (b)
• C)arrow (c)
• D)arrow (d)

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Definitions:

Psychoactive Drug

Any substance that affects the mind, altering mood, perception, or consciousness, including medications and recreational drugs.

Susceptibility

The degree to which a person or organism can be affected by a particular agent or condition.

EEG Recordings

Electrical recordings of brain activity obtained through electrodes placed on the scalp, used in neuroscience research.

Alpha Waves

Brain wave patterns associated with relaxed and calm states of mind, typically present when a person is awake but relaxed.