Question

questions 8 - 15: circle the choice that best answers each question. 8. a substance is poured from one container to another, but the shape does not change. what state is it in? a. gas b. liquid c. solid 9. particles in the gaseous state move ____ than particles in the liquid state? a. faster b. slower 10. the temperature of the system is highest when it is a __ a. solid b. liquid c. gas 11. what is the same about a particle as gas, liquid, or solid? a. the speed at which the particles move. b. the volume that the substance takes up. c. the chemical composition. d. the temperature of the substance. 12. what is the volume of a liquid in a 50 ml cup? a. 50 ml b. 10 ml c. there is not enough information to answer this question 13. a closed container is the best way to measure the volume of a __ a. gas b. liquid c. solid d. both a and b are correct. 14. how would you characterize a liquid? a. has a fixed volume b. has a fixed shape c. takes the shape of a container d. both a and c 15. bromine is a liquid at room temperature. the volume of a sample of bromine is measured in a 50 ml beaker and a 100 ml beaker. how will the two measurements compare? a. the volume of bromine will be larger in the 100ml beaker b. the volume of bromine will be smaller in the 50ml beaker c. the volumes will be the same d. both a and b

Explanation:

1. Solids have a definite shape, so when poured, their shape doesn't change.
2. Gas - phase particles have more kinetic energy and move faster than liquid - phase particles.
3. Gases have the highest average kinetic energy among the three states, so the system temperature is highest in the gaseous state.
4. The chemical composition of a substance is the same regardless of its state (solid, liquid, or gas).
5. Just because it's a 50 mL cup doesn't mean it's full. We don't know the volume of the liquid inside without more info.
6. Gases are highly compressible and expand to fill their container, so a closed container is best for measuring gas volume.
7. Liquids have a fixed volume and take the shape of their container.
8. The volume of a liquid is an inherent property of the liquid sample and doesn't depend on the size of the container used for measurement.

Answer:

1. c. Solid
2. a. Faster
3. c. Gas
4. c. The chemical composition
5. c. There is not enough information to answer this question
6. a. Gas
7. d. Both a and c
8. c. The volumes will be the same