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Home ‣ Mechanical Engineering ‣ Thermodynamics Comments
  • Question

  • Mond gas is obtained by


  • Options
  • A. partial combusion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
  • B. carbonisation of bituminous coal
  • C. passing steam over incandescent coke
  • D. passing air and a large amount of steam over waste coal at about 650°C

  • Correct Answer
  • passing air and a large amount of steam over waste coal at about 650°C 

    • Thermodynamics problems

    Search Results

    • 1. The area under the temperature-entropy curve (i. e. T - s curve) of any thermodynamic process represents the workdone during the process.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 2. The root mean square velocity of the gas molecules is given by (where k = Boltzmann's constant, T = Absolute temperature, and m = Mass of one molecule of a gas)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 3. The volumetric or molar specific heat at constant pressure is the product of

    • Options
    • A. molecular mass of the gas and the specific heat at constant volume
    • B. atomic mass of the gas and the gas constant
    • C. molecular mass of the gas and the gas constant
    • D. none of the above
      • Discuss
    • 4. The amount of heat given out by the complete combustion of 1 kg of fuel is known as calorific value of solid or liquid fuel.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. One Joule (J) is equal to

    • Options
    • A. 1 N-m
    • B. 1 kN-m
    • C. 10 N-m/s
    • D. 10 kN-m/s
      • Discuss
    • 6. The heat and mechanical energies are mutually convertible. This statement was established by

    • Options
    • A. Boyle
    • B. Charles
    • C. Joule
    • D. none of these
      • Discuss
    • 7. The change of entropy, when heat is removed from the gas, is negative.

    • Options
    • A. Yes
    • B. No
      • Discuss
    • 8. A triatomic molecule consists of __________ atoms.

    • Options
    • A. one
    • B. two
    • C. three
    • D. four
      • Discuss
    • 9. One molecule of oxygen consists of __________ atoms of oxygen.

    • Options
    • A. 2
    • B. 4
    • C. 8
    • D. 16
      • Discuss
    • 10. The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to

    • Options
    • A. 0
    • B. 1
    • C. ?
    • D. ?
      • Discuss

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