Virtual Labs

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

To determine the infinite dilution activity coefficients (IDACs) of a binary mixture using Ebulliometer

Choose difficulty:

Beginner

Intermediate

Advanced

What is the difference between VLE experiment and

\gamma_i^{\infty}

experiment?

a: No difference Explanation

Explanation

b: The quantity of 2 nd compound is very low in VLE Explanation

Explanation

c: The quantity of 2 nd compound is very low in

\gamma_i^{\infty}

experiment Explanation

Explanation

d: Equimolar mixture is needed in

\gamma_i^{\infty}

experiment Explanation

Explanation

What condition indicates that you should stop increasing the heating rate?

a: When the pressure reaches maximum Explanation

Explanation

b: When the cold-water temperature stabilizes Explanation

Explanation

c: When small increments in heating rate don't raise the temperature Explanation

Explanation

d: When temperature start rising Explanation

Explanation

how should the heating rate be adjusted?

a: Increase rapidly to save time Explanation

Explanation

b: Increase slowly and allow system to accommodate change Explanation

Explanation

c: Give constant change throughout the experiment Explanation

Explanation

d: Quick increase then decrease gradually until temperature stabilizesn Explanation

Explanation

What is the optimal drop rate that should be maintained?

a: 5 to 10 drops per minute Explanation

Explanation

b: 60 to 70 drops per minute Explanation

Explanation

c: 100 to 125 drops per minute Explanation

Explanation

d: Greater than 150 drops per minute Explanation

Explanation

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