Question
Superheated steam at 1500 kPa, has a specific volume of 2.75 m3 /kmol and compressibility factor (𝒁) of 0.95. The temperature of steam is______ oC (round off to the nearest integer).
Options :
522
471
249
198
Answer :
249
Solution :
P = 1500 kPa, ν = 2.75 m3/kmol, Z = 0.95, R = 8.314 J/K/mol
Z =
T = = = 522.26 K 522 K
T = 522 - 273 = 249 ∘C
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