Question

Question
Which experimental setup would let a student investigate the connection between kinetic energy and temperature?(1 point)
Responses

placing one drop of food coloring in a cup with 50 mL of water at 10ºC; placing two drops of food coloring in a second cup with 100 mL of water at 40ºC
placing one drop of food coloring in a cup with 50 m L of water at 10 degree celsius ; placing two drops of food coloring in a second cup with 100 m L of water at 40 degree celsius

placing one drop of food coloring in a cup with 50 mL of water at 10ºC; placing one drop of food coloring in a second cup with 50 mL of water at 40ºC
placing one drop of food coloring in a cup with 50 m L of water at 10 degree celsius ; placing one drop of food coloring in a second cup with 50 m L of water at 40 degree celsius

placing one drop of food coloring in a cup with 50 mL of water at 10 ºC; placing two drops of food coloring in a second cup with 50 mL of water at 10 ºC
placing one drop of food coloring in a cup with 50 m L of water at 10 degree celsius ; placing two drops of food coloring in a second cup with 50 m L of water at 10 degree celsius

placing one drop of food coloring in a cup with 50 mL of water at 10ºC; placing one drop of food coloring in a second cup with 100 mL of water at 10ºC
placing one drop of food coloring in a cup with 50 m L of water at 10 degree celsius ; placing one drop of food coloring in a second cup with 100 m L of water at 10 degree celsius
Skip to navigation

Answer 1

The second option: place one drop of food coloring in 50 mL of water at 10°C and one drop in 50 mL of water at 40°C.

Reason: This keeps volume and dye amount constant while only changing temperature, so any difference in mixing/diffusion rate is due to temperature (average kinetic energy) of the water.