Based on data from the steam tables, the Joule-Thompson coefficient of steam at 3 MPa and 300°C is approximately
A)0
B)-5°C/MPa
C)12°C/MPa
D)8°C/MPa
E)26°C/MPa

Question

Quizplus · Accepted Answer

Solved by EES Software. Solutions can be verified by copying-and-pasting the following lines on a blank EES screen. 
T1=300 "C"
P1=3000 "kPa"
h1=ENTHALPY(Steam_IAPWS,T=T1,P=P1)
Tlow=TEMPERATURE(Steam_IAPWS,h=h1,P=P1+500)
Thigh=TEMPERATURE(Steam_IAPWS,h=h1,P=P1-500)
JT=(Tlow-Thigh)/1000

Based on Data from the Steam Tables, the Joule-Thompson Coefficient