The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm.mole, its fugacity at 300 K would be________________?
Correct answer: B. 3567Pa
- A. 3171Pa
- B. 3567Pa
- C. 1.01 x 10^5Pa
- D. 5000Pa
Explanation
Using the integrated Clausius–Clapeyron relation, ln(f₂/f₁) = ΔHvap/R(1/T₁ − 1/T₂), raises the fugacity from about 3171 Pa at 298 K to approximately 3567 Pa at 300 K. The small temperature rise produces this roughly 12.5% increase.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Engineering Thermodynamics
598 free Chemical Engineering Thermodynamics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Engineering Thermodynamics questions
Which one can be directly solidified from gaseous state without entering into liquid state ?
Gas turbine normally employs a constant _______________ cycle?
The activity of pure hydrogen gas at 1000°C and 5 atm pressure_________________?
Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which _____________ with increase in the pressure of steam?
Dryness fraction of dry steam is_________________?
In ________________ process, there is an increase in entropy with no degradation of energy ?