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GEN CHEM CH 9-SOLUTIONS

Terms in this set (15)

Substances that combine together to form a single phase are known as?
solutions
Gasses "dissolved" into other gases can be thought of as solutions, but are more properly defined as?
mixtures, bc according to kinetic molecular theory of gases, their molecules do no interact at all that much chemically
When considering a solution, containing solute and solvent, which remains in the same phase after mixing?
solvent
Electrostatic interaction b/w solute and solvent molecules
solvation
Solvation is also known as d_______?
disolution
When the new interactions formed after solvation are stronger than the original ones, this is considered an ? process and is favored @ _____ temps?
exothermic, low
When the new interactions formed after solvation are weaker than the original ones, this is considered an endothermic process and is favored at ____ temps?
high
Proteins dissolve in solution with their most hydrophilic amino acids on the outside and hydrophobic amino acids on the inside bc this maximizes the increase in ? during dissolution?
entropy
When the strength of the new interaction(s) formed after solvation are equal to the overall strength of the original interactions, overall the enthalpy change for the dissolution is = to ?
zero
When delta H=0 for a dissolution, the solution is known as an?
ideal solution
At constant temp and pressure, entropy always ? upon dissolution?
increase
As with any process, the spontaneity of dissolution depends on the change in?
Gibbs free energy
Spontaneous processes are associated with a ? in free energy?
decrease
Non spontaneous rxns are associated with an increase in?
free energy
The degree to which energy is dispersed throughout a system or the amount of energy distributed from the system to the surroundeing
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