Question

A student added a drop of red food colouring to 4 beakers of water. Each beaker contained 100 ml of water at different temperatures. The student recorded how long it took each beaker to mix completely (without stirring). The following table shows her results:

What conclusion should the student make from this experiment about the movement of the particles?

• A. They move faster in warm water so they mix faster
• B. They move slowly in warm water so they mix slowly
• C. They move faster in warm water so they mix slowly
• D. They move slowly in warm water so they mix faster

Answer 1

The correct option is A

They move faster in warm water so they mix faster

Particles are moving faster in warm water and so they mix at a faster rate.