A piston-cylinder device contains a vapor-liquid equilibrium mixture of water at T=150 °C. The quality of the mixture is initially q=0.90 and the volume of the mixture is initially 1 m3. The vessel is compressed at constant T and P until the quality is q=0.3.
A) Determine the initial masses of the liquid and vapor phases.
B) Determine the work required to complete the compression.
C) Determine the change in enthalpy of the mixture.
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The grass species least likely to have nematode problems is:
A) bahiagrass B) bermudagrass C) ?centipedegrass D) St. Augustinegrass
_____ sheep are found in extremely high numbers in Australia.
a. Corriedale c. Merino b. Rambouillet d. Debouillet
Which type of single-phase induction motor is used for hard-starting applications, such as for compressors?
A. resistance-start B. capacitor-start
A wire of length 20 cm vibrates in one direction in a constant magnetic field with a flux density of 0.1 T; see Figure P18.45. The position of the wire as a function of time is given by x(t) = 0.1 sin10t m. Find the induced emf across the length of the wire as a function of time.
Known quantities:
Length of the wire is 20cm ; Flux density is 0.1T ; The position of the wire is x(t)=0.1sin10tm
Find:
The induced emf across the length of the wire as a function of time.