Two glasses labeled A and B had equal amounts of water. Ted heated the water in one of the glasses. He then put two drops of food coloring into each of the two glasses. The table shows the time taken by the food coloring in the two glasses to spread out.

Food Coloring Experiment

\begin{tabular}{|c|c|}
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Glass & Time \\
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A & 25 seconds \\
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B & 6 seconds \\
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\end{tabular}

Which of the following statements is correct?

A. The water in Glass B was heated; therefore, the particles in Glass B have greater kinetic energy and move faster.

B. The water in Glass A was heated; therefore, the particles in Glass A have greater kinetic energy and move faster.

C. The water in Glass B was heated; therefore, the particles in Glass B move slower.

D. The water in Glass A was heated; therefore, the particles in Glass A move slower.



Answer :

To determine which statement is correct based on the given experiment, let's analyze the provided data regarding the time it takes for the food coloring to spread out in the two glasses of water.

1. Observation of Data:
- Glass A: 25 seconds for the food coloring to spread out.
- Glass B: 6 seconds for the food coloring to spread out.

2. Understanding the Phenomenon:
- The speed at which food coloring spreads in water is influenced by the temperature of the water.
- Higher temperatures increase the kinetic energy of water molecules, causing them to move faster. This faster movement helps the food coloring to spread out more quickly.

3. Interpreting the Data:
- Since the food coloring spreads out faster in Glass B (6 seconds) compared to Glass A (25 seconds), we can infer that the water in Glass B has a higher temperature.
- Higher temperature means the molecules in Glass B have more kinetic energy and thus move faster.

4. Correct Statement:
Considering the above points, the correct statement should be:
"The water in Glass B was heated; therefore, the particles in Glass B have greater kinetic energy and move faster."

Thus, the correct statement based on the experimental observations and the understanding of how temperature affects the kinetic energy and movement of particles is:

"The water in Glass B was heated; therefore, the particles in Glass B have greater kinetic energy and move faster."

This statement aligns with our interpretation of the experiment. Therefore, the correct option is:

[tex]\[0\][/tex] - "The water in Glass B was heated; therefore, the particles in Glass B have greater kinetic energy and move faster."