Answer :
To predict which process will lead to a decrease in the conductivity of the solution, we need to consider the impact of each option on the solution's ability to conduct electricity.
- A. Adding more water to a saltwater solution: Adding more water to a saltwater solution will dilute the concentration of salt in the solution. As a result, the conductivity of the solution will decrease because there are fewer ions available to carry the electrical charge.
- B. Adding more table salt to an unsaturated saltwater solution: Adding more table salt to an unsaturated saltwater solution will increase the concentration of ions in the solution, leading to an increase in conductivity. Therefore, this process will not result in a decrease in conductivity.
- C. Adding table salt to a sugar water solution: When table salt is added to a sugar water solution, it will increase the concentration of ions in the solution, potentially increasing the conductivity of the solution rather than decreasing it.
- D. Adding acetic acid to water: Acetic acid is a weak electrolyte and does not dissociate completely in water to produce ions. Therefore, adding acetic acid to water will not significantly increase the number of ions in solution, resulting in a minimal change in conductivity.
In conclusion, the process that will most likely lead to a decrease in the conductivity of the solution is "Adding more water to a saltwater solution" due to dilution reducing the concentration of ions available for conductivity.
