Copyright
NMTA Middle Grades General Science (204): Practice & Study Guide  /  Science Courses

Test Prep Plan - Take a practice test

Take this practice test to check your existing knowledge of the course material. We'll review your answers and create a Test Prep Plan for you based on your results.
How Test Prep Plans work
1
Answer 50 questions
Test your existing knowledge.
2
View your test results
Based on your results, we'll create a customized Test Prep Plan just for you!
3
Study smarter
Study more effectively: skip concepts you already know and focus on what you still need to learn.

Phase Changes for Liquids & Solids Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. At the melting point and boiling point what happens?

Question 2 2. Calculate how much heat energy (q) is needed to melt 10 grams of gold at its melting point. Note: gold has a heat of fusion of 15.4 cal/g.

Question 3 3. What is NOT something that a phase equilibrium line shows?

Question 4 4. Calculate how much heat energy is required to turn 100 grams of iron into a gas at its boiling point. The heat of vaporization for iron is 69.1 cal/g.

Question 5 5. What is the triple point?

Page 2

Question 6 6. How is water's phase diagram different from the phase diagram of carbon dioxide and carbon?

Question 7 7. What of the following is NOT one of the types of crystals?

Question 8 8. What is a phase diagram?

Question 9 9. What is NOT something that you would find on a phase diagram?

Question 10 10. Which of the following do phase diagrams show?

Page 3

Question 11 11. What is a dipole-dipole force?

Question 12 12. What takes more energy: changing a liquid to a gas or changing a solid to a liquid?

Question 13 13. An example of condensation is:

Question 14 14. What is happening at the triple point on a phase diagram?

Question 15 15. Which of the following is most likely to lead to a phase change?

Page 4

Question 16 16. In the broadest sense, what was the Kinetic Molecular Theory designed to explain?

Question 17 17. Why are metallic crystals, such as gold nuggets, known to be good conductors of electricity?

Question 18 18. What makes ionic crystals, such as calcium chloride, very hard and brittle?

Question 19 19. The complete three-dimensional arrangement of particles within a crystal is known as the _____, while the smallest repeating unit in the lattice is called the _____.

Question 20 20. Which of the following is NOT a characteristic of solid particles?

Page 5

Question 21 21. The energy required to change a solid to a liquid at its melting point is called:

Question 22 22. Substances in which phase of matter have the most space between particles?

Question 23 23. What determines the shapes that different types of crystalline solids can take?

Question 24 24. The phase change when gas turns directly into a solid is called:

Question 25 25. A scientist measures the pressure and temperature of a sample. When they plot the data on their phase diagram, they make a point on a vertical line directly above the critical point. What's definitely true of the sample?

Page 6

Question 26 26. The phase change when a solid goes directly to a gas is called:

Question 27 27. The amount of energy required to change a liquid into a gas at its boiling point, is called:

Question 28 28. When you cross the line on a phase diagram and go from a solid to a liquid, what has occurred?

Question 29 29. For water, how are pressure and boiling point related?

Question 30 30. Gas can be turned into a plasma on Earth with the addition of:

Phase Changes for Liquids & Solids Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Support