### Use tables to calculate entropy changes

##### Recall:

Entropy is a state function! By the state postulate (and/or the
Gibbs phase rule), it is uniquely determined once we know enough
information (intensive variables) to fix the system's state.

##### Outcome:

Use tables to calculate entropy changes

##### Test Yourself:

Superheated water vapor at a pressure of 200bar, a temperature
of 500C, and a flow rate of 10 kg/s is brought to a saturated vapor
state at 100bar by mixing it adiabatically with a stream of liquid
water at 20C and 100bar. The flow rate of the liquid is 1.95 kg/s.
What is the rate of entropy generation?