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  • Question

  • When the gas is heated at constant pressure, the heat supplied


  • Options
  • A. increases the internal energy of the gas
  • B. increases the temperature of the gas
  • C. does some external work during expansion
  • D. Both (B) and (C)

  • Correct Answer
  • Both (B) and (C) 

    • Thermodynamics problems

    Search Results

    • 1. The atomic mass of sulphur is

    • Options
    • A. 12
    • B. 14
    • C. 16
    • D. 32
      • Discuss
    • 2. Both the Ericsson and Joule's cycle have two constant pressure processes.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. When gas is heated at constant pressure, the heat supplied is utilised in

    • Options
    • A. increasing the internal energy of gas
    • B. doing some external work
    • C. increasing the internal energy of gas and also for doing some external work
    • D. none of the above
      • Discuss
    • 4. It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 5. The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and ? = Ratio of specific heats)

    • Options
    • A. 1 - r? - 1
    • B. 1 + r? - 1
    • C.
    • D.
      • Discuss
    • 6. It is __________ to make an engine working on a Carnot cycle.

    • Options
    • A. possible
    • B. impossible
      • Discuss
    • 7. If the carbon content in the bituminous coal is 78 to 81%, it is said to be coking bituminous coal.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss
    • 8. The mass of carbon per kg of flue gas is given by

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 9. The mass of excess air supplied is equal to

    • Options
    • A. x Mass of excess carbon
    • B. x Mass of excess oxygen
    • C. x Mass of excess carbon
    • D. x Mass of excess oxygen
      • Discuss
    • 10. A cycle consisting of two isothermal and two isentropic processes, is known as

    • Options
    • A. Carnot cycle
    • B. Stirling cycle
    • C. Ericsson cycle
    • D. Joule cycle
      • Discuss

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