09/13

Reading verification:

1.

(a)

Write an algebraic expression for the entropy of a perfect gas in terms of two state variables.

or similar.

2.

(a)

If two states 1 and 2 have the same entropy, what can you say about the ratio of temperatures compared to the ratio of pressures?

3.

(a)

If two states 1 and 2 have the same entropy, what can you say about the ratio of pressures compared to the ratio of densities?

4.

(a)

What is 1D flow?

Flow only dependent on x