Question

Bella is conducting an experiment with four beakers of water. Each beaker is held at a different temperature but contains an equal volume of water. Bella places a single drop of food coloring in each beaker and records the time it takes the food coloring to be evenly distributed throughout the water without stirring. She has recorded her data below.

Beaker Temperature (°C) Time (s)
W 10.0 131
X 30.0 105
Y 50.0 79.1
Z 70.0 51.5
Which conclusion could Bella reach from her data?
A.
The concentration of food coloring in water decreases with decreasing temperature.
B.
The rate of evaporation increases with increasing temperature for water.
C.
Increasing masses of water distribute food coloring at decreasing rates.
D.
The rate of convection increases with increasing temperature in water.

Answer 1

Bella could conclude from her data that the rate of diffusion and potentially convection increases with increasing temperature in water, as indicated by the faster spread of food coloring in warmer water.

Step-by-step explanation:

Bella's experiment involved observing the rate of diffusion of food coloring at different temperatures in water. From her data, we can see a clear trend that as the temperature increases, the time it takes for the food coloring to be evenly distributed throughout the water decreases.

Although Bella's data is not about evaporation rates, masses of water, or food coloring concentrations, it is about the diffusion and possibly convection processes in water. The most accurate conclusion Bella could reach is that the rate of diffusion, and perhaps convection, increases with increasing temperature in water (Option D). This is suggested by the decreasing amount of time it takes for the food coloring to evenly spread as the temperature increases in each beaker.