A stream of ethylene gas at 250°C and 3800 kPa expands isentropically in a turbine to 120 kPa. Determine the temperature of the
expanded gas and the work produced if the properties of ethylene are calculated by:
(a) Equations for an ideal gas.
(b) Appropriate generalized correlations.
(a) Equations for an ideal gas.
(b) Appropriate generalized correlations.
1 answer:
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Answer:
a) 19 or select the closest answer
b) 5%
Explanation:
a)
from the voltage divide rule
Select the nearest answer
b)
obtained gain =
Expected gain =
∴ error = || × 100
= 1/20 × 100
= 5%