The Dissolution of Gases in Water Is Virtually Always Exothermic

question 79

Multiple Choice

The dissolution of gases in water is virtually always exothermic because __________.

• A)one of the two endothermic steps (separation of solute particles)in the solution-formation process is unnecessary
• B)the exothermic step in the solution-formation process is unnecessary
• C)gases react exothermically with water
• D)neither of the two endothermic steps in the solution-formation process is necessary
• E)all three steps in the solution-formation process are exothermic

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