Discussion
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- Question
The value of (Cp - Cv)for a real gas obeying Vander Wall's equation is
Options- A. R
- B. > R
- C. < R
- D. 0.5 R
- Correct Answer
- > R
- 1. __________ equation gives the effect of temperature on heat of reaction.
Options- A. Kirchoffs
- B. Maxwell's
- C. Antonie
- D. Kistyakowsky Discuss
- 2. Isotopes are atoms having the same
Options- A. mass number
- B. number of neutrons
- C. atomic mass
- D. none of these Discuss
- 3. Pick out the correct statement.
Options- A. A substance existing above its critical temperature is called a saturated vapor.
- B. A mixture of vapor gas is called saturated, if the equilibrium vapor pressure of the liquid is more than the partial pressure of the vapor at the same temperature.
- C. Heat added to or given up by a substance at constant temperature is called the sensible heat.
- D. The end points of a vapor-pressure vs. temperature curve are critical and triple points. Discuss
- 4. If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its
Options- A. bubble point.
- B. saturation temperature.
- C. dew point.
- D. both (b) and (c). Discuss
- 5. In a binary liquid system, the composition expressed as __________ is independent of the temperature & pressure.
Options- A. kg of solute/kg of solvent
- B. kg-mole of solute/kg-mole of solvent
- C. kg-mole of solute/1000 kg of solvent
- D. all (a), (b) & (c) Discuss
- 6. In __________ process, ions of salts react with water to produce acidity or alkalinity.
Options- A. hydration
- B. hydrolysis
- C. electrolysis
- D. dialysis Discuss
- 7. 1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.
Options- A. 1
- B. 2.42
- C. 4.97
- D. none of these Discuss
- 8. Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is
Options- A. 1.72
- B. 0.58
- C. 0.5
- D. 0.2 Discuss
- 9. In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is
Options- A. 180
- B. 60.3
- C. 720
- D. 200 Discuss
- 10. How much O2 can be obtained from 90 kg of water?
Options- A. 32 kg
- B. 80 kg
- C. 64 kg
- D. 90 kg Discuss
Stoichiometry problems
Search Results
Correct Answer: Kirchoffs
Correct Answer: none of these
Correct Answer: The end points of a vapor-pressure vs. temperature curve are critical and triple points.
Correct Answer: both (b) and (c).
Correct Answer: all (a), (b) & (c)
Correct Answer: hydrolysis
Correct Answer: 1
Correct Answer: 0.58
Correct Answer: 60.3
Correct Answer: 80 kg
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