Question

aqueous solutions - 7.6d, 7.6e
9 part b
which statement best explains the answer to part a?
a the increase in temperature means an increase in kinetic energy within
the solvent. this increase in kinetic energy allows more solute particles to
be broken apart and dissolved
b the decrease in temperature means an increase in kinetic energy within
the solvent. this increase in kinetic energy allows more solute particles to
be broken apart and dissolved
c the increase in temperature means a decrease in kinetic energy within
the solvent. this decrease in kinetic energy allows more solute particles
to be broken apart and dissolved
d the decrease in temperature means an increase in kinetic energy within
the solvent. this increase in kinetic energy allows fewer solute particles to
be broken apart and dissolved

Explanation:

• Temperature is related to the average kinetic energy of particles. As temperature increases, the kinetic energy of solvent particles increases.
• Higher kinetic energy of solvent particles means they can more effectively interact with solute particles, break the solute - solute interactions, and dissolve more solute.

Answer:

A. The increase in temperature means an increase in kinetic energy within the solvent. This increase in kinetic energy allows more solute particles to be broken apart and dissolved