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- Question
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1 ) under these conditions is
Options- A. 40732
- B. 2676
- C. 2263
- D. 540
- Correct Answer
- 2263
- 1. Which equation is not an equation of state?
Options- A. PV = RT + B/V + y/V2 + ....
- B. (P + a/V2)(V-b) = RT
- C.
- D.
Discuss
- 2. Isotonic solutions must have the same
Options- A. viscosity
- B. molar concentration
- C. normality
- D. critical temperature Discuss
- 3. 1 kg/cm2 is equal to
Options- A. 760 torr
- B. 1KPa
- C. 10 metres of water column
- D. 1 metre of water column Discuss
- 4. "The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements." This is the statement of
Options- A. Law of Petit and Dulong
- B. Kopp's rule
- C. Nearnst heat theorem
- D. Trouton's rule Discuss
- 5. An azeotropic solution of two liquids has boiling point lower than either of them, when it
Options- A. is saturated.
- B. is unsaturated.
- C. shows negative deviation from Raoult's law.
- D. shows positive deviation from Raoult's law. Discuss
- 6. Which of the following is not a unit of kinematic viscosity?
Options- A. Poise
- B. Stoke
- C. cm2/second
- D. None of these Discuss
- 7. 1 gm mole of methane (CH4) contains
Options- A. 6.02 x 1023 atoms of hydrogen.
- B. 4 gm atoms of hydrogen.
- C. 3.01 x 1023 molecules of methane.
- D. 3 gms of carbon. Discuss
- 8. Percentage saturation of a vapor bearing gas is always __________ the relative saturation.
Options- A. higher than
- B. smaller than
- C. equal to
- D. either (a) or (b); depends on the system Discuss
- 9. The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is
Options- A. 0.4
- B. 0.6
- C. 0.8
- D. 0.2 Discuss
- 10. Ideal solution is formed, when its components have zero
Options- A. heat of mixing.
- B. volume change.
- C. both (a) & (b).
- D. neither (a) nor (b). Discuss
Stoichiometry problems
Search Results
Correct Answer:
Correct Answer: molar concentration
Correct Answer: 10 metres of water column
Correct Answer: Kopp's rule
Correct Answer: shows positive deviation from Raoult's law.
Correct Answer: Poise
Correct Answer: 4 gm atoms of hydrogen.
Correct Answer: smaller than
Correct Answer: 0.6
Correct Answer: both (a) & (b).
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