Discussion
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- Question
If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will
Options- A. be reduced to l/4th.
- B. increase four times.
- C. increase two times.
- D. none of these.
- Correct Answer
- increase four times.
- 1. The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.?
Options- A. 0.2
- B. 0.1
- C. 0.4
- D. 0.6 Discuss
- 2. Which of the following is followed by an ideal solution?
Options- A. Boyle's law
- B. Amgat's law
- C. Raoult's law
- D. Trouton's rule Discuss
- 3. In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality?
Options- A. Use of equation of state
- B. Fugacity co-efficient
- C. Activity co-efficient
- D. None of these Discuss
- 4. The molecular velocity of a real gas is proportional to (where, T = absolute temperature of the gas).
Options- A. T
- B. T
- C. T2
- D. 1/T Discuss
- 5. Two solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution
Options- A. A2 is more alkaline than solution A2
- B. A1 is highly acidic.
- C. A1 is very slightly acidic.
- D. both (a) &(c). Discuss
- 6. "The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes". This is the __________ law.
Options- A. Dalton's
- B. Amgat's
- C. GayLussac's
- D. Avogadro's Discuss
- 7. Which of the following is not a unit of pressure?
Options- A. Parsec
- B. Kilo-pascal
- C. Bar
- D. Newton/metre2 Discuss
- 8. The atomic heat capacities of all solid elements __________ with decrease in temperature.
Options- A. increases
- B. decreases
- C. remains unchanged
- D. approach zero at 0°C Discuss
- 9. The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________
Options- A. 1026
- B. 1023
- C. 1020
- D. 1019 Discuss
- 10. Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H+] = hydrogen ion concentration in the solution).
Options- A.
- B.
- C.
- D. none of these Discuss
Stoichiometry problems
Search Results
Correct Answer: 0.6
Correct Answer: Raoult's law
Correct Answer: Activity co-efficient
Correct Answer: T
Correct Answer: both (a) &(c).
Correct Answer: Amgat's
Correct Answer: Parsec
Correct Answer: decreases
Correct Answer: 1020
Correct Answer:
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