Question

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The following document contains a series of questions relating to content that has been, or will be,

discussed in class. Please be aware that, on first assignment, not everything contained in this

problem set will have been addressed directly in class. However, all content will be addressed by

the time this problem set is due. With that said, it would be a good idea to work on the problems

over the course of their assigned period, completing questions relating to content discussed in class

as we discuss it, rather than waiting until the last minute and attempting to complete the entire

problem set at once. You will get more out of the exercise by doing it over time.

Kinetic Molecular Theory

1. How would you describe all matter?

2. According to the Kinetic Molecular Theory, what is temperature?

3. Explain why there is no negative temperature in the Kelvin scale?

4. Give an engineering example of dealing with thermal expansion.

Laws of Thermodynamics

1. From a molecular point of view, how would you describe thermal equilibrium?

2. Give an example of the following systems:

a. Closed

b. Open

c. Isolated

3. Explain the sign conventions for both work and heat and describe what they mean in

observable terms.

4. A 25g piece of metal absorbs 300 Joules of energy and experiences a 17 K increase of

temperature. What is its specific heat? Please make sure to include correct units.

5. A 50g sample of ice at 270K is heated until it becomes steam at 385K. How much energy

was absorbed by the water?

Answer 1

Both the problem is done.