Using Entropy Data and Concepts

One-tenth kmol of carbon monoxide (CO) in a piston-cylinder assembly undergoes a process from p1 = 150 kPa, T1 = 300 K to p2 = 500 kPa, T2 = 370 K. For the process, W = −300 kJ. Employing the ideal gas model, determine

(a) the heat transfer, in kJ.

(b) the change in entropy, in kJ/K.

Show the process on a sketch of the T-s diagram.

Step 1 of 4</p>

In this problem, we have to find the heat transfer and the change in entropy and also sketch the process on T-s diagram. The given data are

Step 2 of 4</p>

The carbon monoxide modeled as an ideal gas where kinetic and potential energy effects can be ignored.

A) The energy balance

where and

From the table A-23 we get

Hence the heat transfer.