Discussion
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- Question
Pick out the correct statement.
Options- A. Heat of solution is always positive.
- B. At equilibrium, ?G is zero.
- C. For the reaction, PCl5⇌PCl3 + Cl2, ?G is less than ?E
- D. The heating of water in a beaker is an example of an isolated system.
- Correct Answer
- At equilibrium, ?G is zero.
- 1. Normality of a solution does not change with the increase in the
Options- A. pressure
- B. temperature
- C. solute concentration
- D. dilution of the solution Discuss
- 2. A solution of specific gravity 1 consists of 35% A by weight and the remaining B. If the specific gravity of A is 0.7, the specific gravity of Bis
Options- A. 1.25
- B. 1.3
- C. 1.35
- D. 1.2 Discuss
- 3. Pick out the wrong unit conversion.
Options- A. l kgf= 9.8 Newton.
- B. 1 stoke = 1 m2/second.
- C. 1 Pascal second = 10 poise.
- D. 1 ppm = 1 ml/m3 = 1 mg/kg. Discuss
- 4. A sugar solution containing __________ percent sugar is equivalent to 1 Brix.
Options- A. 0.01
- B. 0.1
- C. 1
- D. 10 Discuss
- 5. Volume occupied by one gm mole of a gas at S.T.P. is
Options- A. 22.4 litres
- B. 22400 litres
- C. 22.4 c.c
- D. 359 litres Discuss
- 6. No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules
Options- A. collide without loss of energy.
- B. do work equal to loss in kinetic energy.
- C. are above the inversion temperature.
- D. exert no attractive force on each other. Discuss
- 7. The heat of solution depends upon the
Options- A. nature of solvent
- B. concentration of solution
- C. nature of solute
- D. all (a), (b) & (c) Discuss
- 8. "The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface". This statement pertaining to the solubility of gases in liquid is the __________ law.
Options- A. Raoult's
- B. Henry's
- C. Amgat's
- D. none of these Discuss
- 9. One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH4 + 2O2 ? CO2 + 2H2O. Both the reactants and products are in gas phase. ?H°298 = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to
Options- A. 1225
- B. 1335
- C. 1525
- D. 1735 Discuss
- 10. pH value of a solution containing 1 gm of hydrogen ion per litre will be
Options- A. 0
- B. 1
- C. 7
- D. 10 Discuss
Stoichiometry problems
Search Results
Correct Answer: pressure
Correct Answer: 1.2
Correct Answer: 1 stoke = 1 m2/second.
Correct Answer: 1
Correct Answer: 22.4 litres
Correct Answer: are above the inversion temperature.
Correct Answer: all (a), (b) & (c)
Correct Answer: Henry's
Correct Answer: 1735
Correct Answer: 0
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