$7-33$ Using the relation $ds=(\frac{Q}{T}{)}_{\text{i}\text{n}\text{t}\text{r}\text{e}\text{v}}$ for the definition

of entropy, calculate the change in the specific entropy of

R $-134$a as it is heated at a constant pressure of $200$ kPa from a

saturated liquid to a saturated vapor. Use the R$-134$a tables to

verify your answer.