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Problem

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question

What is the pressure inside a boiler which contains liquid water and steam at a temperature of 225°F. Assume that the enthalpy of vaporization of water at 212°F, 1 atm is 970.3 Btu/lbm and the specific volume of the vapor and liquid phases are 26.80 and 0.01672 ft^3/lbm respectively.

category

engineering

options

  1. 16.25lbf/in^2
  2. 17.30lbf/in^2
  3. 12.75lbf/in^2
  4. 22.50lbf/in^2
  5. 15.10lbf/in^2
  6. 19.80lbf/in^2
  7. 14.50lbf/in^2
  8. 18.45lbf/in^2
  9. 20.35lbf/in^2
  10. 21.65lbf/in^2

src

stemez-Thermodynamics

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Source and history

Official source

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