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Heating Curves Practice

By Amy McClure
Last updated about 2 years ago
20 Questions
The heating curve shown below is a plot of temperature vs time. It represents the heating of substance X at a constant rate of heat transfer. Answer the following questions using this heating curve:
1.

In what part of the curve would substance X be a gas?

2.

In what part of the curve would substance X be a solid?

3.

In what part of the curve would substance X be a liquid?

4.

. What part of the curve represents a mixed solid/liquid phase of substance X?

5.

What part of the curve represents a mixed liquid/vapor (gas) phase of substance X?

6.

In what part of the curve is boiling occuring?

7.

In what part of the curve is melting occuring?

8.

In what parts of the curve is the temperature remaining constant? (Choose 2 answers)

9.

In what parts of the curve is the temperature increasing? (Choose 3 answers)

10.

In what parts of the curve would the particles be experiencing an increase in kinetic energy? (Choose 3 answers)

11.

In what parts of the graph is the heat energy being used to break the intermolecular attractive forces between the molecules of the substance? (Choose 2 answers)

12.

What is the boiling temperature of substance X?

13.

What is the melting temperature of substance X?

14.

In what part of the curve would the molecules of X have the highest kinetic energy?

15.

In what part of the curve would substance X have the greatest intermolecular forces of attraction?

16.

In what part of the curve would the molecules of X have the least kinetic energy?

17.

At 40 degrees Celsius, sustance X would be a ____________.

18.

At -15 degrees Celsius, sustance X would be a ____________.

19.

At 80 degrees Celsius, sustance X would be a ____________.

20.

In what part of the curve would the molecules of substance X be farthest apart?