2. Answer all parts of this question. a. Superheated water vapor at 25 MPa and 500 °C is allowed to cool at constant volume until the temperature drops to 250 °C. At the final state, determine the following: the pressure the quality the enthalpy i. b. Determine the specific volume of superheated water vapor at 4.5 MPa and 650 °C using i. the ideal gas equation ii. the generalized compressibility charts iii. the steam tables Also determine the error involved in case i and ii.

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2. Answer all parts of this question.
a. Superheated water vapor at 25 MPa and 500 °C is allowed to cool at constant
volume until the temperature drops to 250 °C. At the final state, determine the
following:
i.
the pressure
ii.
the quality
iii. the enthalpy
b. Determine the specific volume of superheated water vapor at 4.5 MPa and 650 °C
using
the ideal gas equation
the generalized compressibility charts
the steam tables
Also determine the error involved in case i and ii.
i.
ii.
Transcribed Image Text:2. Answer all parts of this question. a. Superheated water vapor at 25 MPa and 500 °C is allowed to cool at constant volume until the temperature drops to 250 °C. At the final state, determine the following: i. the pressure ii. the quality iii. the enthalpy b. Determine the specific volume of superheated water vapor at 4.5 MPa and 650 °C using the ideal gas equation the generalized compressibility charts the steam tables Also determine the error involved in case i and ii. i. ii.
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