Stoichiometry MCQ Questions & Answers | Chemical Engineering Page-6 section-2

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51.
Osmotic pressure of the solution can be increased by

A. Decreasing its temperature

B. Increasing the volume of the vessel containing the solution

C. Diluting the solution

D. None of these

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52.
The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the

A. Temperature & pressure

B. Number of intermediate chemical reactions involved

C. State of aggregation & the state of combination at the beginning & the end of the reaction

D. None of these

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53.
Pick out the wrong statement.

A. To make 100 kg of a solution containing 40% salt by mixing solution A (containing 25% salt) and solution B (containing 50% salt), the amount of solution A required is 40 kg

B. 1.2 gm atoms of carbon and 1.5 gm moles of oxygen are reacted to give 1 gm mole of carbon dioxide. The limiting reactant is carbon. The percent excess reactant supplied is 25

C. A gas bubble at a pressure of P_g is passed through a solvent with a saturation vapour pressure of P_s. If the time of passage of the bubble is long and air is insoluble in the solvent, the mole fraction of solvent in the bubble will be equal to $$\frac{{{{\text{P}}_{\text{s}}}}}{{{{\text{P}}_{\text{g}}}}}$$

D. A supersaturated solution of a sparingly soluble solute, at a concentration of C, is being fed to a crystalliser at a volumetric flow rate of V. The solubility of the solute is C₁. The output rate of solids from an efficient crystalliser is (C + C₁)V

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54.
The unit of dynamic viscosity is

A. Stoke

B. Poise

C. Gm/cm sec

D. Both B & C

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55.
A gas mixture contains 6 moles of H₂ and 2 moles of N₂. If the total pressure of the gaseous mixture is 4 kgf/cm²; then the partial pressure of N₂ in the mixture will be __________ kgf/cm².

A. 1

B. 2

C. 4

D. 8

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56.
The heat capacity of a substance is

A. Greater for liquid state than for solid state

B. Lower for liquid state than for gaseous state

C. Higher for solid state than for liquid state

D. Equal for solid and liquid states below melting point

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57.
A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be C_p = 29.1 J/mole.°C and, C_v = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is

A. 13728 J

B. 19206 J

C. 4576 J

D. 12712 J

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58.
__________ kg of CaCO₃ on heating will give 56 kg of CaO.

A. 56

B. 100

C. 144

D. 1000

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59.
The temperature at which real gases obey the ideal gas law over a wide range of pressure is called the __________ temperature.

A. Reduced

B. Boyle

C. Critical

D. Inversion

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60.
The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be

A. Basic

B. More acidic

C. Neutral

D. Of the same acidity

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Stoichiometry MCQ Questions & Answers | Chemical Engineering

51. Osmotic pressure of the solution can be increased by

Answer & Solution

52. The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the

Answer & Solution

53. Pick out the wrong statement.

Answer & Solution

54. The unit of dynamic viscosity is

Answer & Solution

55. A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be __________ kgf/cm2.

Answer & Solution

56. The heat capacity of a substance is

Answer & Solution

57. A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is

Answer & Solution

58. __________ kg of CaCO3 on heating will give 56 kg of CaO.

Answer & Solution

59. The temperature at which real gases obey the ideal gas law over a wide range of pressure is called the __________ temperature.

Answer & Solution

60. The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be

Answer & Solution

Read More Section(Stoichiometry)

51.
Osmotic pressure of the solution can be increased by

52.
The net heat evolved or absorbed in a chemical process, i.e. total change in the enthalpy of the system is independent of the

53.
Pick out the wrong statement.

54.
The unit of dynamic viscosity is

55.
A gas mixture contains 6 moles of H₂ and 2 moles of N₂. If the total pressure of the gaseous mixture is 4 kgf/cm²; then the partial pressure of N₂ in the mixture will be __________ kgf/cm².

56.
The heat capacity of a substance is

57.
A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be C_p = 29.1 J/mole.°C and, C_v = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is

58.
__________ kg of CaCO₃ on heating will give 56 kg of CaO.

59.
The temperature at which real gases obey the ideal gas law over a wide range of pressure is called the __________ temperature.

60.
The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be