
Understanding Dissolution and Thermodynamics
Interactive Video
•
Chemistry, Science
•
10th - 12th Grade
•
Hard

Aiden Montgomery
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term used for a substance that dissolves in a solvent?
Solvent
Solute
Solution
Mixture
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which condition makes dissolution thermodynamically favorable?
ΔG° > 0
ΔG° = 0
ΔG° < 0
ΔG° ≥ 0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to entropy when a solid is broken up during dissolution?
Entropy becomes zero
Entropy remains constant
Entropy decreases
Entropy increases
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the dissolution process, what is the sign of ΔH3 when solute and solvent interact?
Negative
Positive
Undefined
Zero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which salt has a positive ΔH° of solution at 25°C?
Magnesium chloride
Sodium chloride
Potassium chloride
Calcium chloride
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does magnesium chloride have a negative ΔH° of solution?
It releases more energy during hydration
It absorbs energy
It is larger in size
It has a lower charge
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sign of ΔS° of solution for sodium chloride at 25°C?
Zero
Positive
Negative
Undefined
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