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  • Question
  • S.T.P. corresponds to


  • Options
  • A. 1 atm. absolute pressure & 15.5°C.
  • B. 760 mm Hg gauge pressure & 15.5°C.
  • C. 760 torr & 0°C.
  • D. 101.325 kPa gauge pressure & 15.5°C.

  • Correct Answer
  • 1 atm. absolute pressure & 15.5°C. 


  • Stoichiometry problems


    Search Results


    • 1. One Newton is equal to __________ dynes.

    • Options
    • A. 102
    • B. 103
    • C. 104
    • D. 105
    • Discuss
    • 2. Which of the following is not a unit of pressure?

    • Options
    • A. Torr
    • B. Newton/m2
    • C. Parsec
    • D. Ata, bar or pascal
    • Discuss
    • 3. Pick out the wrong unit conversion of calorific value.

    • Options
    • A. 1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg.
    • B. 1 BTU/ft3 = 8.9 kcal/m3 = 0.038 MJ/m3.
    • C. 1 BTU/lb = 2.3 kcal/kg.
    • D. 1 kcal/m3 = 0.1124 BTU/ft3.
    • Discuss
    • 4. Which of the following is not a colligative property?

    • Options
    • A. Osmotic pressure
    • B. Depression of freezing point
    • C. Lowering of vapor pressure
    • D. none of these.
    • Discuss
    • 5. The rate of material __________ is zero in case of a steady state system.

    • Options
    • A. accumulation
    • B. production
    • C. input
    • D. generation
    • Discuss
    • 6. On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes

    • Options
    • A. 1
    • B. 8
    • C. 4
    • D. 2
    • Discuss
    • 7. 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
    • 8. 1st law of thermodynamics is nothing but the law of conservation of

    • Options
    • A. momentum
    • B. mass
    • C. energy
    • D. none of these
    • Discuss
    • 9. 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
    • 10. Which of the following is a thermodynamic property of a system?

    • Options
    • A. Concentration
    • B. Mass
    • C. Temperature
    • D. Entropy
    • Discuss


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