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- Question
A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is
Options- A. 0.16
- B. 0.33
- C. 0.66
- D. 0.47
- Correct Answer
- 0.33
- 1. A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2 ; then the partial pressure of N2 in the mixture will be __________ kgf/cm2 .
Options- A. 1
- B. 2
- C. 4
- D. 8 Discuss
- 2. For an endothermic reaction, the minimum value of energy of activation will be (where, ?H = enthalpy of the reaction)
Options- A. ? H
- B. >?H
- C. <?H
- D. 0 Discuss
- 3. Which of the following has the smallest least effect on the solubility of a solute into the solvent?
Options- A. Nature of the solute
- B. Nature of the solvent
- C. Temperature
- D. Pressure Discuss
- 4. In case of a solution (not of a solid in a liquid), whose total volume is less than the sum of the volumes of its components in their pure states, solubility is
Options- A. independent of temperature.
- B. increases with rise in pressure.
- C. increased with decrease in pressure.
- D. unchanged with pressure changes. Discuss
- 5. One 'Therm' is equivalent to
Options- A. 105 BTU
- B. 105 kcal
- C. 109 BTU
- D. 109 kcal Discuss
- 6. According to the kinetic theory, the thermal conductivity of a monoatomic gas is proportional to
Options- A. T
- B. T0.5
- C. T1.5
- D. T2 Discuss
- 7. Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.
Options- A. carbonate (monohydrate)
- B. chloride
- C. thiosulphate
- D. bisulphite Discuss
- 8. The average value of heat of neutralisation of dilute solution of strong acids and strong bases is about __________ kcal/kg.mole of water formed.
Options- A. 6680
- B. 13360
- C. 2481
- D. 97302 Discuss
- 9. Pick out the wrong unit conversion.
Options- A. 1 Joule = 4.186 calorie.
- B. 1 kcal = 3.968 BTU = 0.00116 kWh = 0.00156 hp.
- C. 1 ton of TNT (tri-nitro-toluene) = 4.2 GJ (1G = 109).
- D. 1 ft.lbf= 0.3238 calorie = 0.1383 kg.m = 1.356 J = 1.356 N.m. Discuss
- 10. In a neutral solution
Options- A. H+ ions are absent.
- B. OH- ions are absent.
- C. both H+ and OH- ions are present in very small but equal concentration.
- D. none of these. Discuss
Stoichiometry problems
Search Results
Correct Answer: 1
Correct Answer: >?H
Correct Answer: Pressure
Correct Answer: increases with rise in pressure.
Correct Answer: 105 BTU
Correct Answer: T0.5
Correct Answer: carbonate (monohydrate)
Correct Answer: 13360
Correct Answer: 1 Joule = 4.186 calorie.
Correct Answer: both H+ and OH- ions are present in very small but equal concentration.
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