Discussion
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- Question
Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules
Options- A. do not lose energy on collision.
- B. are above the inversion temperature.
- C. do not exert attractive force on each other.
- D. do work equal to loss in kinetic energy.
- Correct Answer
- do not exert attractive force on each other.
- 1. The percentage ratio of the partial pressure of the vapor to the vapor pressure of the liquid at the existing temperature is
Options- A. termed as relative saturation.
- B. not a function of the composition of gas mixture.
- C. called percentage saturation.
- D. not a function of the nature of vapor. Discuss
- 2. Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of
Options- A. mixing
- B. adsorption
- C. wetting
- D. complete wetting Discuss
- 3. Elements in a periodic table are arranged in order of their
Options- A. atomic number.
- B. mass number.
- C. atomic weight.
- D. metallic characteristics. Discuss
- 4. A butane isomerisation process produces 70 kmole/hr of pure isobutane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be
Options- A. 3 kmole/hr
- B. 4 kmole/hr
- C. 5 kmole/hr
- D. 6 kmole/hr Discuss
- 5. Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity? Vapour pressure of water at 20°C is 17.5 mm Hg.
Options- A. 80.38
- B. 80
- C. 79.62
- D. 78.51 Discuss
- 6. On mixing 56 gm of CaO with 63 gm of HNO3, the amount of Ca(NO3)2 formed is __________ gm.
Options- A. 82
- B. 164
- C. 41
- D. 8.2 Discuss
- 7. The heat capacity of most substances is greater for the __________ state.
Options- A. solid
- B. liquid
- C. gaseous
- D. none of these Discuss
- 8. The viscosity of water at room temperature may be around one
Options- A. centipoise
- B. poise
- C. stoke
- D. both (b) &(c) Discuss
- 9. Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature?
Options- A. Chlorine
- B. Nitrogen
- C. Ethane
- D. All the gases will have the same KE Discuss
- 10. Unit of mass velocity is
Options- A. kg/m . hr
- B. kg/m2.hr
- C. kg/hr
- D. kg/m2 Discuss
Stoichiometry problems
Search Results
Correct Answer: termed as relative saturation.
Correct Answer: complete wetting
Correct Answer: atomic number.
Correct Answer: 5 kmole/hr
Correct Answer: 79.62
Correct Answer: 82
Correct Answer: liquid
Correct Answer: centipoise
Correct Answer: All the gases will have the same KE
Correct Answer: kg/m2.hr
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