A 100g of bulk water is dispersed as droplets of

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a) A 100g of bulk water is dispersed as droplets of radius0.5x10-5 mm. If the surface tension of water is7.2x10-2 N/m, what is the change in free energy inkJ?

b) The contact angle between water and a carbon nanotube (CNT)bundle is 86.3o (J. Phys. Chem. B, 2006,110, 15945). If the surface tension of CNTs is ~28mN/m, calculate the interfacial tension between water and the CNTs.

Reference no: EM13635269

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