Question
A student fills a large container with cold water. He fills another, smaller container with hot water and red food coloring, and seals it with a lid. Next, he places the small container of hot water into the larger container of cold water. When he removes the lid on the small container, he observes the colored water rising up to the top of the cold water. Why does this occur? Select all that apply.
Responses
because the hot water molecules move as fast as those of cold water
because the hot water is more dense than the cold water
because the hot water molecules move slower than those of cold water
because the hot water has the same density as the cold water
because the hot water is less dense than the cold water
because the hot water molecules move faster than those of cold water
Responses
because the hot water molecules move as fast as those of cold water
because the hot water is more dense than the cold water
because the hot water molecules move slower than those of cold water
because the hot water has the same density as the cold water
because the hot water is less dense than the cold water
because the hot water molecules move faster than those of cold water
Answers
GPT-4o mini
The correct responses are:
- because the hot water is less dense than the cold water
- because the hot water molecules move faster than those of cold water
When the lid is removed from the small container, the hot water (which is less dense due to the increased kinetic energy and movement of the water molecules) rises to the top of the cold water, leading to the observation of the colored water mixing and moving upward.
- because the hot water is less dense than the cold water
- because the hot water molecules move faster than those of cold water
When the lid is removed from the small container, the hot water (which is less dense due to the increased kinetic energy and movement of the water molecules) rises to the top of the cold water, leading to the observation of the colored water mixing and moving upward.