Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing) ?
Correct answer: A. Both B. and C.
- A. Both B. and C.
- B. ΔH = 0
- C. ΔV = 0
- D. ΔH = 1 (+ ve) and Δ V = -ve
Explanation
An ideal solution has zero enthalpy and zero volume change on mixing because intermolecular interactions are effectively unchanged. Therefore both ΔH = 0 and ΔV = 0 apply.
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
For estimation of heat capacity of a solid compound, one can use________________?
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m3. It cools to 98°C; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m3. The latent heat of condensation (kJ/kg-1 ) under these conditions is___________________?
Which equation is not an equation of state ?
The heat change for the reaction, C(s) + 2S(s) → CS2(l), is 104.2 kJ. It represents the heat of_________________?
Raoult's law is obeyed by a _____________ solution?
At standard conditions, N2 + 2O2 ⇌ 2NO2; ΔG° = 100 kJ/mole NO + ½O2 ⇌ 2NO2; ΔG° = -35 kJ/mole The standard free energy of formation of NO in kJ/mole is___________________?