Chemical Engineering Thermodynamics MCQs with answers Page - 2

Here, you will find a collection of MCQ questions on Chemical Engineering Thermodynamics. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. (1/V) (∂V/∂T)P is the mathematical expression

  • (A) Joule-Thomson co-efficient
  • (B) Specific heat at constant pressure (Cp)
  • (C) co-efficient of thermal expansion
  • (D) Specific heat at constant volume (CV)

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Q. 1m^3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole . K, the final temperature will be

  • (A) 35 K
  • (B) 174 K
  • (C) 274 K
  • (D) 154 K

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Q. 1st law of thermodynamics is nothing but the law of conservation of

  • (A) Momentum
  • (B) Mass
  • (C) Energy
  • (D) None of these

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Q. 4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

  • (A) 4 J
  • (B) ∞
  • (C) 0
  • (D) 8 J

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Q. A Carnot cycle consists of the following steps

  • (A) Two isothermal and two isentropic
  • (B) Two isobaric and two isothermal
  • (C) Two isochoric and two isobaric
  • (D) Two isothermals and two isochoric

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Q. A change in state involving a decrease in entropy can be spontaneous, only if

  • (A) It is exothermic
  • (B) It is isenthalpic
  • (C) It takes place isothermally
  • (D) It takes place at constant volume

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Q. A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is

  • (A) Zero
  • (B) Positive
  • (C) Negative
  • (D) None of these

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Q. A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system

  • (A) its internal energy (U) decreases and its entropy (S) increases
  • (B) U and S both decreases
  • (C) U decreases but S is constant
  • (D) U is constant but S decreases

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