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

Correct Answer: Increases

We know for an ideal binary solution by Lewis-Randall rule fugacity of a component is directly proportional to mole fraction of that component. So basically on increasing the mole fraction the fugacity of the component is increasing but this equation is valid only for an ideal solution but, we can extend this behavior for real solution also under some conditions.
Bissoy MCQ
#Chemical Engineering #Chemical Engineering Thermodynamics

Related Questions

"The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture". This is
A The statement as per Gibbs-Helmholtz
B Called Lewis-Randall rule
C Henry's law
D None of these
For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.
A Decreases
B Increases
C Remains same
D Decreases linearly
Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.
A Decreases
B Increases
C Remains constant
D Decreases logarithmically
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
In a homogeneous solution, the fugacity of a component depends upon the
A Pressure
B Composition
C Temperature
D All of the above
Fugacity co-efficient of a substance is the ratio of its fugacity to
A Mole fraction
B Activity
C Pressure
D Activity co-efficient
The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law.
A Exponential
B Parabolic
C Linear
D Cubic
In an ideal gas mixture, fugacity of a species is equal to its
A Vapor pressure
B Partial pressure
C Chemical potential
D None of these
The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of
A T
B T and P
C T, P and Z
D T and Z
STP-তে একটি আদর্শ গ্যাসকে প্রথমে তার প্রাথমিক আয়তনের এক-তৃতীয়াংশে সংকুচিত করা হয়, এবং তারপর প্রসারিত হতে দেওয়া হয় যতক্ষণ না তার চাপ প্রাথমিক চাপের অর্ধেক হয়। উভয় প্রক্রিয়ায় গ্যাসের তাপমাত্রা স্থির থাকে। যদি গ্যাসের প্রাথমিক অভ্যন্তরীণ শক্তি । হয়ে থাকে তাহলে এর চূড়ান্ত অভ্যন্তরীণ শক্তি কত? (An ideal gas at STP is first compressed to one-third of its initial volume and then allowed to expand until its pressure is half the initial pressure. The temperature of the gas remains constant during both the processes. If the initial internal energy of the gas is U, what is its final internal energy?)
A U/3
B U/2
C U
D 2U/3

Next steps