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Homework Help: Phase Change Question

  1. Jul 14, 2011 #1
    When a substance undergoes a phase change, the added heat changes (a) the temperature, (b) the kinetic energy, (c) the potential energy, (d) the mass of the substance.
    I believe the answer is kinetic energy because the molecules move faster.
  2. jcsd
  3. Jul 14, 2011 #2
    only 1 answer is correct?
    coz i guess both b,c
  4. Jul 14, 2011 #3
    Only one answer is correct so I think the best answer is kinetic energy which is option B. What do you think, am I right?
  5. Jul 14, 2011 #4
    i guess b is correct ... but c should also be an answer
  6. Jul 15, 2011 #5
  7. Jul 15, 2011 #6
    you're welcome :smile:
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