Questions: A concentration gradient exists in a solution when the concentration of solutes in the solution is the same everywhere. greater than the amount of solvent. less than the amount of solvent. not the same everywhere.

A concentration gradient exists in a solution when the concentration of solutes in the solution is the same everywhere. greater than the amount of solvent. less than the amount of solvent. not the same everywhere.
Transcript text: A concentration gradient exists in a solution when the concentration of solutes in the solution is the same everywhere. greater than the amount of solvent. less than the amount of solvent. not the same everywhere.
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Solution

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Solution Steps

Step 1: Understand the Concept of Concentration Gradient

A concentration gradient refers to the gradual change in the concentration of solutes in a solution over a distance. It implies that the concentration is not uniform throughout the solution.

Step 2: Analyze the Options
  • "The same everywhere" suggests uniform concentration, which does not create a gradient.
  • "Greater than the amount of solvent" and "less than the amount of solvent" refer to the ratio of solute to solvent, not the distribution of solute concentration.
  • "Not the same everywhere" indicates a variation in concentration, which is necessary for a concentration gradient.
Step 3: Identify the Correct Option

The correct option is "not the same everywhere," as it describes a situation where a concentration gradient exists due to varying solute concentrations in different parts of the solution.

Final Answer

The correct answer is D.

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