According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition.

Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the

A

Sizes of the component molecules are approximately equal

B

Attractive forces between like and unlike molecules are approximately equal

C

Component molecules are non-polar and no chemical combination or molecular association between unlike molecules takes place in the formation of the solution

D

All of the above

কক্ষ তাপমাত্রায় 1.0 mole এসিটিক এসিড এবং 1.0 mole ইথানলকে মিশ্রিত করা হলো। সাম্যবস্থায় 0.667 mole এসিটিক এসিড ক্রিয়ায় অংশগ্রহণ করলে তার ke এর মান 4.00 হয়। কত মোল এষ্টার উৎপাদিত হবে যদি একই তাপমাত্রায় 4.0 mole এসিড এবং 2.0 mole ইথানাল নেয়া হয়।

A

0.333

B

0.667

C

6.0

D

2.0

Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases.

A

Decreases

B

Decreases exponentially

C

Increases

D

Remains constant

A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor.

A

Saturated

B

Supersaturated

C

Superheated

D

None of these

A vapor whose partial pressure is less than its equilibrium vapor pressure is called the __________ vapor.

A

Saturated

B

Superheated

C

Unsaturated

D

Dry gaseous

In case of an ideal solution, the total vapor pressure varies __________ with the composition expressed as mole fraction,

A

Inversely

B

Linearly

C

Exponentially

D

None of these

For an ideal solution, the total vapor pressure varies __________ with the composition(expressed as mole fraction).

A

Inversely

B

Exponentially

C

Linearly

D

Negligibly

Relative volatility varies with the concentration of component for an ideal solution. The relative volatity of a binary mixture may be defined as the ratio of vapor pressure of component 'A' to that of component 'B', when

A

Only vapor phase follows Raoult's law

B

Only liquid phase obeys Dalton's law

C

Liquid phase obeys Dalton's law and vapor phase obeys Raoult's law

D

Vapor phase obeys Dalton's law and liquid phase obeys Raoult's law

If the numerator of a fraction is increased by 150% and the denominator of a fraction increased by 200% fraction becomes 10/19. Find the fraction.

A

12/17

B

10/16

C

12/19

D

9/11

If 1 is added to the numerator of a fraction, the fraction becomes 1. If 1 is added to the denominator, the fraction becomes 12Find the fraction.

A

13

B

12

C

23

D

34

According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition.

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