3. Refer to the following diagram and information to answer Questions 3–6. In this diagram, heat energy is being added over time. The vertical axis shows an increase in temperature, and the horizontal axis shows the passage of time.
temperature pic

In the diagram, the solid is melting at which point?
http://takeexam.next.ecollege.com/ec/courses/46122/CRS-SCI102B-3950282/temperature_pic.gif
(Points : 3)
D
C
B
A

Question

3. Refer to the following diagram and information to answer Questions 3–6. In this diagram, heat energy is being added over time. The vertical axis shows an increase in temperature, and the horizontal axis shows the passage of time.
temperature pic

In the diagram, the solid is melting at which point?
http://takeexam.next.ecollege.com/ec/courses/46122/CRS-SCI102B-3950282/temperature_pic.gif
(Points : 3)
       D
       C
       B
       A

anonymous · Answer

Question 4.4. In the diagram, the liquid is vaporizing at which point? (Points : 3)
       D
       C
       B
       A


Question 5.5. What is happening to the temperature at Point B? (Points : 3)
       The temperature is not rising because the molecules are slowing down.
       The temperature is rising as the molecules break apart from each other.
       The temperature is dropping as the molecules break apart from each other.
       The temperature is not rising because the heat is being used to break the connections between the molecules.


Question 6.6. In the diagram, the solid eventually becomes a gas. What will happen to bring the substance from a solid to a gas? (Points : 3)
       Energy will be added.
       The substance will lose pressure.
       The substance will lose volume.
       Energy will be taken away.

anonymous · Answer

Could not see diagram.
When liquid vaporizes or freezes, there is a period when the temperature is not changing but is at the boiling point or the freezing point. That should help.

To disrupt a solid into a liquid and then into a gas, the energy of the molecules must be increased by adding heat, causing more and more vigorous molecular motion.

anonymous · Answer

copy an paste

anonymous · Answer

Goal here is for you to figure these out, with a bit of help.

anonymous · Answer

i answerd everything else there 40 questions i just dont get these

anonymous · Answer

Are there regions where the temperature is not changing?
What temperatures are these?
What do you think they correspond to?

anonymous · Answer

c,b,a,d those are my answers for these

anonymous · Answer

am i correct

anonymous · Answer

Wish I could be more helpful, but the diagram is not showing up.
The principles I listed should give you the correct answers.

anonymous · Answer

http://takeexam.next.ecollege.com/ec/courses/46122/CRS-SCI102B-3950282/temperature_pic.gif