Discussion
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- Question
Solutions which distil without change in composition are called
Options- A. ideal
- B. saturated
- C. supersaturated
- D. azeotropic
- Correct Answer
- azeotropic
- 1. Vapor pressure of water at 100°C is about __________ bar.
Options- A. 0.1013
- B. 1.013
- C. 10.13
- D. 101.3 Discuss
- 2. Osmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult's law is proportional to the
Options- A. temperature.
- B. volume of solution.
- C. moles of non-volatile solute.
- D. none of these. Discuss
- 3. If pH value of a solution is 8, then its pOH value will be
Options- A. 6
- B. 1
- C. 7
- D. 10 Discuss
- 4. Gases diffuse faster compared to liquids because of the reason that the liquid molecules
Options- A. are held together by stronger inter-molecular forces.
- B. move faster.
- C. have no definite shape.
- D. are heavier Discuss
- 5. Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is
Options- A. 10.73 kJ
- B. 16.15 kJ
- C. 18.11 kJ
- D. 18.33 kJ Discuss
- 6. N2 content in a urea sample was found to be only 42%. What is the actual urea content of the sample? (molecular weight of urea = 60)
Options- A. 80%
- B. 90%
- C. 95%
- D. 98% Discuss
- 7. Density of carbon dioxide is __________ kg/Nm3.
Options- A. 44/22400
- B. 44/22.4
- C. 22.4/44
- D. none of these Discuss
- 8. Kopp's rule is concerned with the calculation of
Options- A. thermal conductivity.
- B. heat capacity.
- C. viscosity.
- D. surface tension. Discuss
- 9. 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
- 10. 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
Stoichiometry problems
Search Results
Correct Answer: 1.013
Correct Answer: temperature.
Correct Answer: 6
Correct Answer: are held together by stronger inter-molecular forces.
Correct Answer: 18.11 kJ
Correct Answer: 90%
Correct Answer: 44/22.4
Correct Answer: heat capacity.
Correct Answer: both(a) & (b)
Correct Answer: formation
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