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- Question
Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the
Options- A. low pressure and high temperature.
- B. low pressure and low temperature.
- C. high pressure and low temperature.
- D. high pressure and high temperature.
- Correct Answer
- low pressure and low temperature.
- 1. Heating of water under atmospheric pressure is an __________ process.
Options- A. isochoric
- B. isobaric
- C. adiabatic
- D. isothermal Discuss
- 2. Which of the following is a thermodynamic property of a system?
Options- A. Concentration
- B. Mass
- C. Temperature
- D. Entropy Discuss
- 3. Equilibrium constant decreases as the temperature
Options- A. increases, for an exothermic reaction.
- B. decreases, for an exothermic reaction.
- C. increases, for an endothermic reaction.
- D. none of these. Discuss
- 4. 1st law of thermodynamics is nothing but the law of conservation of
Options- A. momentum
- B. mass
- C. energy
- D. none of these Discuss
- 5. A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the
Options- A. atomic weight of the metal is 4.
- B. equivalent weight of the metal is 4.
- C. atomic weight of the metal is 2.
- D. equivalent weight of the metal is 8. Discuss
- 6. The chemical potential of a component (?i) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of sustance added for an infinitesimal addition at constant temperature and pressure. It is given by
Options- A.
- B.
- C.
- D. all (a), (b) and (c) Discuss
- 7. In a working refrigerator, the value of COP is always
Options- A. 0
- B. < 0
- C. < 1
- D. > 1 Discuss
- 8. Linde gas liquefaction process employs cooling
Options- A. by throttling
- B. by expansion in an engine
- C. at constant pressure
- D. none of these Discuss
- 9. The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is
Options- A. -2 RT ln 0.5
- B. -RT ln 0.5
- C. 0.5 RT
- D. 2 RT Discuss
- 10. A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is
Options- A. zero
- B. positive
- C. negative
- D. none of these Discuss
Chemical Engineering Thermodynamics problems
Search Results
Correct Answer: isobaric
Correct Answer: Entropy
Correct Answer: increases, for an exothermic reaction.
Correct Answer: energy
Correct Answer: equivalent weight of the metal is 4.
Correct Answer: all (a), (b) and (c)
Correct Answer: > 1
Correct Answer: by throttling
Correct Answer: -RT ln 0.5
Correct Answer: negative
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