Question

equal amount of sanitizer is poured into saucer,cup,and a test tube . predict in which vessel the sanitizer remains for a longer time

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Answer 1

The sanitizer will remain for a longer time in the Test Tube.

- Sanitizer is a volatile substance, so it will evaporate on exposure to the atmosphere.

- As the evaporation depends upon the area, so the sanitizer will evaporate at a slower rate from the vessel with less area.

- The test tube has lesser area than the cup and saucer, so the sanitizer will remain in it for a longer time.

Answer 2

Test  Tube

Explanation:

The sanitizer will evaporate when exposed to air. Now, the speed at which it evaporates depends on the surface area exposed to air. So if the container is wide, the surface area will be large and rate of evaporation will be very high.

Among the 3 containers, saucer, cup and test tube, the saucer has the highest surface area and test tube has the lowest surface area.

So the Sanitizer will evaporate faster in a saucer and slowest in a test tube. So the Sanitizer will remain in the test tube for a longer time.