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- Question
The evaporation of aqueous solution of sugar causes its molarity to
Options- A. decrease. (b) increase.
- B. remain unchanged.
- C. either (a) or (b); depends on the concentration of the solution.
- Correct Answer
- remain unchanged.
- 1. Heat of solution in a system in which both solute and solvent are liquids is termed as
Options- A. heat of solvation.
- B. heat of hydration.
- C. standard integral heat of solution.
- D. heat of mixing. Discuss
- 2. The heat change for the reaction, C(s) + 2S(s) ? CS2(l), is 104.2 kJ. It represents the heat of
Options- A. formation
- B. solution
- C. combustion
- D. fusion Discuss
- 3. In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
Options- A. solute concentration
- B. temperature
- C. both(a) & (b)
- D. neither (a) nor (b) Discuss
- 4. Kopp's rule is concerned with the calculation of
Options- A. thermal conductivity.
- B. heat capacity.
- C. viscosity.
- D. surface tension. Discuss
- 5. Density of carbon dioxide is __________ kg/Nm3.
Options- A. 44/22400
- B. 44/22.4
- C. 22.4/44
- D. none of these Discuss
- 6. One micron is equal to
Options- A. 10-4 mm
- B. 10-4 cm
- C. 10-6 m
- D. both(b)&(c) Discuss
- 7. Pick out the wrong statement.
Options- A. 'Reduced temperature' of a substance is the ratio of its existing temperature to its critical temperature, both expressed on celsius scale.
- B. 'Reduced pressure' is the ratio of the existing pressure of a substance to its critical pressure.
- C. 'Reduced volume' is the ratio of the existing molal volume of a substance to its critical molal volume.
- D. none of these. Discuss
- 8. CaCO3 contains __________ percent of Ca by weight.
Options- A. 40
- B. 48
- C. 96
- D. 12 Discuss
- 9. 1 kgf/cm2 is not equal to
Options- A. 1 torr
- B. 1 bar
- C. 10000 mm wc
- D. 100 KPa = 100 000 N/m2 Discuss
- 10. The rate of material __________ is zero in case of a steady state system.
Options- A. accumulation
- B. production
- C. input
- D. generation Discuss
Stoichiometry problems
Search Results
Correct Answer: heat of mixing.
Correct Answer: formation
Correct Answer: both(a) & (b)
Correct Answer: heat capacity.
Correct Answer: 44/22.4
Correct Answer: both(b)&(c)
Correct Answer: 'Reduced temperature' of a substance is the ratio of its existing temperature to its critical temperature, both expressed on celsius scale.
Correct Answer: 40
Correct Answer: 1 torr
Correct Answer: accumulation
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