Question

13. Two samples of water at different temperatures are shown below. A tablet is dropped into each sample of water at the same time and a timer is started to measure the rate of reaction. The tablet begins to dissolve and bubbles form. Which statement below best describes what should be expected in this investigation?
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1 point
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A. Sample A will have an increased rate of reaction because the temperature in Sample A is lower than in Sample B.
B. Sample B will have an increased rate of reaction because the temperature in Sample B is lower than in Sample A.
C. Sample A will have an increased rate of reaction because the temperature in Sample A is greater than in Sample B.
D. Sample B will have an increased rate of reaction because the temperature in Sample B is greater than in Sample A

Answer 1

C.

Higher temperature increases particle kinetic energy, so collisions are more frequent and more effective; the tablet will dissolve and produce bubbles faster in the warmer sample (Sample A).