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

  • (A) Zeroth
  • (B) First
  • (C) Second
  • (D) Third
πŸ’¬ Discuss
βœ… Correct Answer: (C) Second

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)
πŸ’¬ Discuss
βœ… Correct Answer: (C) Both (A) and (B)

Q. ________ explains the equilibrium constant for any chemical reaction.

  • (A) Henry's law
  • (B) Law of mass action
  • (C) Hess's law
  • (D) None of these
πŸ’¬ Discuss
βœ… Correct Answer: (B) Law of mass action

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

  • (A) Lewis-Randall
  • (B) Margules
  • (C) Van Laar
  • (D) Both (B) & (C)
πŸ’¬ Discuss
βœ… Correct Answer: (D) Both (B) & (C)

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)
πŸ’¬ Discuss
βœ… Correct Answer: (B) Gibbs free energy

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
πŸ’¬ Discuss
βœ… Correct Answer: (D) A combination of separating & throttling

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