States of Matter Practice Questions

  1. The phase diagram shows the phase transitions that water undergoes when it is impacted by changing pressure and temperature. 

    The above graph is a phase diagram for water. According to the graph, what environmental conditions allow for deposition?

    1. High pressure and increasing temperature
    2. High pressure and decreasing temperature
    3. Low pressure and increasing temperature
    4. Low pressure and decreasing temperature

  2. Hydrogen has a boiling point of –253ºC. Its latent heat is 108 cal/g. What will be the heat energy change in a 10 g sample of hydrogen at –253ºC as it transitions from liquid to a gas?

    1. –27,320 calories
    2. –1080 calories
    3. 1080 calories
    4. 27,320 calories

  3. At what point can a substance exist as a solid, liquid, and gas simultaneously?

    1. Boiling point
    2. Freezing point
    3. Triple point
    4. Critical point

Review your work using the explanations in Part Six of this book.