Question

Using the relation ds=( sq/t ) int rev for the definition of entropy, calculate the change in the specific entropy of R-134a as it is heated at a constant pressure of 200 kPa from a saturated liquid to a saturated vapor. Use the R-13.

Answer 1

To calculate the change in specific entropy of R-134a as it is heated at a constant pressure from a saturated liquid to a saturated vapor, you need to know the heat transferred (q) and the temperature (T).

Step-by-step explanation:

The specific entropy change, ds, can be calculated using the relation ds = (√q/T) int rev, where q is the heat transferred and T is the temperature. In this case, the change in specific entropy, ds, of R-134a as it is heated at a constant pressure of 200 kPa from a saturated liquid to a saturated vapor can be found by substituting the values of q and T into the equation.

However, the values of q and temperature are not provided in the question. To calculate the change in specific entropy of R-134a as it is heated at a constant pressure from a saturated liquid to a saturated vapor, you need to know the heat transferred (q) and the temperature (T).