Stoichiometry problems
- 1. The heat capacity of most substances is greater for the __________ state.
Options- A. solid
- B. liquid
- C. gaseous
- D. none of these Discuss
Correct Answer: liquid
- 2. The viscosity of water at room temperature may be around one
Options- A. centipoise
- B. poise
- C. stoke
- D. both (b) &(c) Discuss
Correct Answer: centipoise
- 3. 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
Correct Answer: All the gases will have the same KE
- 4. Unit of mass velocity is
Options- A. kg/m . hr
- B. kg/m2.hr
- C. kg/hr
- D. kg/m2 Discuss
Correct Answer: kg/m2.hr
- 5. With increase in the solute concentration, the specific heat of aqueous solutions
Options- A. increases
- B. decreases
- C. remains unchanged
- D. either (a) or (b); depends on the type of solution Discuss
Correct Answer: decreases
- 6. The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times.
Options- A. 1/2
- B. 4
- C. 2
- D. 1/4 Discuss
Correct Answer: 2
- 7. The density of a gas 'X' is twice that of another gas 'Y'. If the molecular weight of gas 'Y' is 'M'; then the molecular weight of the gas 'X' will be
Options- A. 2M
- B. M/2
- C. M
- D. M/4 Discuss
Correct Answer: 2M
- 8. Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be __________ atmosphere.
Options- A. 0.5
- B. 1
- C. 1.5
- D. 2 Discuss
Correct Answer: 1
- 9. Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the
Options- A. nature of the liquid.
- B. nature of the gas.
- C. temperature of the liquid. id) total pressure. Discuss
Correct Answer: nature of the gas.
- 10. At a temperature of 0°K, the molecules of a gas have only __________ energy.
Options- A. rotational
- B. vibrational
- C. translational
- D. none of these Discuss
Correct Answer: translational
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