Chemical Engineering Thermodynamics MCQs with answers Page - 1

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Q. _________ law of thermodynamics ascertains the direction of a particular spontaneous process.

  • (A) Zeroth
  • (B) First
  • (C) Second
  • (D) Third

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Q. (∂E/∂T)V is the mathematical expression for

  • (A) CV
  • (B) Enthalpy change
  • (C) Free energy change
  • (D) None of these

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Q. (∂H/∂T)P is the mathematical expression for

  • (A) CV
  • (B) Entropy change
  • (C) Gibbs free energy
  • (D) None of these

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Q. _______ increases with increase in pressure.

  • (A) The melting point of wax
  • (B) The boiling point of a liquid
  • (C) Both (A) and (B)
  • (D) Neither (A) nor (B)

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Q. ________ functions are exemplified by heat and work.

  • (A) Path
  • (B) Point
  • (C) State
  • (D) None of these

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Q. ________ Equation predicts the activity co-efficient from experimental data.

  • (A) Lewis-Randall
  • (B) Margules
  • (C) Van Laar
  • (D) Both (B) & (C)

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Q. _________ does not change during phase transformation processes like sublimation, melting & vaporisation

  • (A) Entropy
  • (B) Gibbs free energy
  • (C) Internal energy
  • (D) All (A), (B) & (C)

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Q. _______ decreases during adiabatic throttling of a perfect gas.

  • (A) Entropy
  • (B) Temperature
  • (C) Enthalpy
  • (D) Pressure

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Q. ________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low.

  • (A) Bucket
  • (B) Throttling
  • (C) Separating
  • (D) A combination of separating & throttling

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Q. (∂T/∂P)H is the mathematical expression for

  • (A) Specific heat at constant pressure (Cp)
  • (B) Specific heat at constant volume (Cv)
  • (C) Joule-Thompson co-efficient
  • (D) None of these

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