Question

Complete the following items by reviewing the image below.



Item 1. Study the graph above. Think about a possible hypothesis that would make sense for the general data seen here.

(1 point)

If energy is added to the system then the temperature will decrease.

If temperature increases then energy will decrease.

If energy is increased in the system then the temperature of the system will increase at particular intervals.

All addition of energy will result in a temperature change.
Look at the graph above and select the best answer.(1 point)
True False
Point B marks this substance's melting point.


The phases of matter most likely to exist between points D and E are liquid and vapor


The slope of the line from the data collected would best be described as change in temperature over change in energy.


Between points C and D you would most likely find this substance in solid form.


Select the interval(s) at which a phase change is mostly likely occuring.(1 point)

A and B

B and C

C and D

D and E
In this experiment, what is being tested?(1 point)

How two different types of substances compare in terms of stored energy

How the temperature affects the energy added

How the addition of energy to a system affects the state of matter

How changing a substance can affect energy changes
Where on this graph would you predict finding the most particles in a gaseous form?(1 point)

At 60°C

Between about 70°C
and 140°C

At 140 °C

Above 140 °C
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Answer 1

Item 1 — Hypothesis (best choice)
- If energy is increased in the system then the temperature of the system will increase at particular intervals.

True/False statements
- Point B marks this substance's melting point. — True
- The phases of matter most likely to exist between points D and E are liquid and vapor. — True
- The slope of the line from the data collected would best be described as change in temperature over change in energy. — True
- Between points C and D you would most likely find this substance in solid form. — False

Select the interval(s) at which a phase change is mostly likely occurring
- B and C (melting) and D and E (boiling)

In this experiment, what is being tested?
- How the addition of energy to a system affects the state of matter

Where on this graph would you predict finding the most particles in a gaseous form?
- Above 140 °C