Discussion
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- Question
1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.
Options- A. 1
- B. 2.42
- C. 4.97
- D. none of these
- Correct Answer
- 1
- 1. In __________ process, ions of salts react with water to produce acidity or alkalinity.
Options- A. hydration
- B. hydrolysis
- C. electrolysis
- D. dialysis Discuss
- 2. 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 Discuss
- 3. __________ equation gives the effect of temperature on heat of reaction.
Options- A. Kirchoffs
- B. Maxwell's
- C. Antonie
- D. Kistyakowsky Discuss
- 4. Isotopes are atoms having the same
Options- A. mass number
- B. number of neutrons
- C. atomic mass
- D. none of these Discuss
- 5. 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
- 6. 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
- 7. 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
- 8. 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
- 9. The quantity of heat required to evaporate 1 kg of a saturated liquid is called
Options- A. specific heat
- B. 1 Kcal
- C. sensible heat
- D. latent heat Discuss
- 10. For the gaseous phase reaction, N2 + O2⇌2NO, ?H = + 80 kJ/kg. mole; the decomposition of NO is favoured by
Options- A. increasing the concentration of N2.
- B. decrease in temperature.
- C. increase in pressure.
- D. decrease in pressure. Discuss
Stoichiometry problems
Search Results
Correct Answer: hydrolysis
Correct Answer: > R
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: 0.58
Correct Answer: 60.3
Correct Answer: 80 kg
Correct Answer: latent heat
Correct Answer: decrease in temperature.
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