UPSC Combined Geo-Scientist, Mains · 2016 · Mains Paper II
Q10(a). Work of dispersing a liquid drop
Question
Calculate the energy in joules to disperse one spherical drop of radius 3.0 mm into drops of radius 3.0×10⁻³ mm, if the surface tension is 72.8 dyn cm⁻¹.
Answer in brief
The minimum surface-formation energy is 8.23×10⁻³ J.
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CoversWork of dispersing a liquid dropSurface energetics
All parts of Question 10
- 10(a) Work of dispersing a liquid drop10 marks
- 10(b) Reversible expansion of a real gas10 marks